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Prof. Yanfei Gao

Professor and Associate Department Head, Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN 37996, USA, Email: ygao7@utk.edu

Faculty Portfolio

Google Scholar

Gao group (https://gao.utk.edu) mainly publishes in the area of Mechanics of Materials (or called Solid Mechanics), with 22 papers in Acta Materialia, 12 papers in Scripta Materialia, 18 papers in Journal of the Mechanics and Physics of Solids, and 3 papers in Progress in Materials Science. Click the left menu for details on contact info, research, teaching, and others.

Journal Papers (accepted and in press)

183.      Placeholder.

Journal Papers (published)

182.      Z.Y. Lyu, C. Liu, D. Xie, R. Feng, D. Yu, Y. Chen, K. An, Y.F. Gao*, H.M. Wang*, P.K. Liaw*, "Low cycle fatigue performances of Al0.3CoCrFeNi high entropy alloys: in situ neutron diffraction studies on the precipitation effects." Intermetallics, vol. 168, article 108241, May 2024 [DOI].

181.      H. Zhang, H. Meng, F. Meng*, Y. Tong, P.K. Liaw, X. Yang, L. Zhao, H. Wang, Y.F. Gao*, S.Y. Chen*, "Magnificent tensile strength and ductility synergy in a NiCoCrAlTi high-entropy alloy at elevated temperature." Journal of Materials Research and Technology, vol. 28, pages 522-532, January-February 2024 [DOI].

2023

180.      H.W. Ma, Y.C. Zhao*, Z. Lyu, X. Wang, Y. Zhu*, Y.F. Gao*, "What are the “dispersive shear bands” on the surfaces of layered heterostructured materials?" Journal of the Mechanics and Physics of Solids, vol. 181, article no. 105467, December 2023 [DOI].

179.      Q.Q. Ding*, Y. Li, J. Ouyang, X. Wei, Z. Zhang, Y.F. Gao*, H. Bei*, "The effect of stacking fault energy on the formation of nano twin/HCP during deformation in FCC concentrated solid solution (CSS) alloys." Materials Today Nano, vol. 24, article no. 100407, December 2023 [DOI].

178.      Y.F. Gao*, "A cavity-based micromechanical model for the shear band failure in metallic glasses under arbitrary stress states." Journal of Applied Mechanics (invited), vol. 90, iss. 12, article no. 121007, December 2023 [DOI] [PDF].

177.      Z. Li, S. Ma, S. Zhao, W. Zhang, F. Peng, Q. Li, T. Yang, C.Y. Wu, D. Wei, Y.C. Chou, P.K. Liaw, Y.F. Gao*, Z. Wu*, "Achieving superb strength in single-phase binary FCC alloys via maximizing volume misfit." Materials Today, vol. 63, pages 108-119, March 2023 [DOI].

176.      D. Xie, Z.H. Li, T.T. Sasaki*, Y.F. Gao*, Z.Y. Lyu, R. Feng, Y. Chen, K. An, H.B. Chew, T. Nakata, K. Kamado, K. Hono, P.K. Liaw, "Identifying the effect of coherent precipitates on the deformation mechanisms by in situ neutron diffraction in an extruded magnesium alloy under low-cycle fatigue conditions." Acta Materialia, vol. 251, article no. 118903, June 2023 [DOI].

175.      Z. Lyu, Z.H. Li, T. Sasaki*, Y.F. Gao*, K. An, Y. Chen, D. Yu, K. Hono, P.K. Liaw, "Micromechanical origin for the wide range of strength-ductility trade-off in metastable high entropy alloys." Scripta Materialia , vol. 231, article no. 115439, July 2023 [DOI].

174.      T. Shan, X.Q. Zhu*, Z. Wang, H. Wang, Y.F. Gao, L. Li, "Investigation on the explosion dynamics of large-format lithium-ion pouch cells." Applied Thermal Engineering, vol. 227, article no. 120426, June 2023 [DOI].

173.      S.Y. Chen*, J. Qiao, H. Diao, T. Yang, J. Poplawsky, W. Li, F. Meng, Y. Tong, L. Jiang, P.K. Liaw*, Y.F. Gao*, "Extraordinary creep resistance in a non-equiatomic high-entropy alloy from the optimum solid-solution strengthening and stress-assisted precipitation process." Acta Materialia , vol. 244, article no. 118600, January 2023 [DOI].

172.      W.J. Yang, M. Luo, Y.F. Gao, X.Q. Feng, J.J. Chen*, "Mechanosensing model of fibroblast cells adhered on a substrate with varying stiffness and thickness." Journal of the Mechanics and Physics of Solids, vol. 171, article no. 105137, February 2023 [DOI].

2022

171.      T. Telmasre, A. Abdelmotagaly, Y.F. Gao, Z. Yu*, "Geometric effects on competing failure modes in lap shear testing of spot joints." China Welding, volume 31, issue 3, pages 8-16, September 2022 [LINK].

170.      S. Zhang, W. Ren*, B. Ding*, Y. Zhong*, X. Yuan, T. Zheng, Z. Shen*, Y. Guo, Q. Li, C. Liu, J. Peng, J. Brnic, Y.F. Gao, P.K. Liaw, "Saturation effect of creep-fatigue cyclic-life for Nickel-based superalloy DZ445 under long-term tensile dwell periods at 900 °C." Journal of Materials Research and Technology, vol. 19, pp. 3216-3230, July-August 2022 [DOI].

169.      H.W. Ma, Y.C. Zhao*, X. Wang, D. Ma, Y.F. Gao*, "Synergistic effects of microstructural inhomogeneity and phase-transformation-induced plasticity for ductility improvements in metallic glass composites." Materials Science and Engineering A, vol. 849, 143491, August 2022 [DOI].

168.      D. Xie, W. Zhang, Z. Lyu, P.K. Liaw, H. Tran, H.B. Chew, Y.J. Wei, Y. Ren, Y.F. Gao*, "Plastic anisotropy and twin distributions near the fatigue crack tip of textured Mg alloys from in situ synchrotron x-ray diffraction measurements and multiscale mechanics modeling." Journal of the Mechanics and Physics of Solids, vol. 165, 104936, August 2022 [DOI].

·         The first author (Dr. Di Xie, PhD #12 in Gao group) has won the TMS Best Paper Contest - Graduate for this work here. The award was granted in TMS 2022 meeting.

167.      B. Ding, W. Ren*, Y. Zhong, X. Yuan, T. Zheng, Z. Shen*, Y. Guo*, Q. Li, J. Peng, J. Brnic, Y.F. Gao, P.K. Liaw, "Revealing the influential mechanism of strain ranges on cyclic-life saturation during creep-fatigue in Nickel-based superalloy DZ445." International Journal of Plasticity, vol. 155, article no. 103320, August 2022 [DOI].

166.      B. Ding, W. Ren*, Y. Zhong*, X. Yuan, T. Zheng, Z. Shen, Y. Guo*, Q. Li, C. Liu, J. Peng, J. Brnic, Y.F. Gao, P.K. Liaw, "Comparison of the creep-fatigue cyclic life saturation effect for three different superalloys." Materials Science and Engineering A, vol. 842, article no. 143086, May 2022 [DOI].

165.      X. Wang, Y.F. Gao*, M. McDonnell, Z.L. Feng*, "Determination of the friction stir welding window from the solid-state bonding mechanics under severe thermomechanical conditions." Materialia, vol. 21, article no. 101350, March 2022 [DOI].

·         The first author (Dr. Xue Wang, PhD #11 in Gao group) has won the Acta Student Award for this publication in Acta Materialia series, conferred at TMS 2024 meeting.

164.      D. Xie, R. Feng, P.K. Liaw, H. Bei, Y.F. Gao*, "Long-term tensile creep behavior of a family of FCC-structured multi-component equiatomic solid solution alloys." Scripta Materialia, vol. 212, article no. 114556, April 2022 [DOI].

163.      H. Tran, Y.F. Gao, H.B. Chew*, "An inverse method to reconstruct crack-tip cohesive zone laws for fatigue by numerical field projection." International Journal of Solids and Structures, vol. 239-240, article no. 111435, March 2022 [DOI].

2021

162.      P.J. Hou, Y. Li, W. Zhang, D.C. Chae, J.S. Park, Y. Ren, Y.F. Gao*, H. Choo*, "Synchrotron x-ray diffraction and crystal plasticity modeling study of martensitic transformation, texture development, and stress partitioning in deep-drawn TRIP steels." Materialia, vol. 18, article no. 101162, August 2021 [DOI].

161.      X. Wang, T. Li, Y.F. Gao*, "What really governs the upper bound of uniform ductility in gradient or layered materials?" Extreme Mechanics Letters, vol. 48, article no. 101413, October 2021 [DOI].

160.      L.B. Xu, L. Casillas-Trujillo, Y.F. Gao, H.X. Xu*, "Compositional effects on stacking fault energies in Ni-based alloys using first-principles and atomistic simulations." Computational Materials Science, vol. 197, article 110618, September 2021 [DOI].

159.      X. Li, Z. Li, Z. Wu*, S. Zhao*, W. Zhang*, H. Bei, Y.F. Gao, "Strengthening in Al-, Mo- or Ti-doped CoCrFeNi high entropy alloys: a parallel comparison." Journal of Materials Science & Technology, vol. 94, pp. 264-274, December 2021 [DOI].

158.      X. Wang, Y.F. Gao*, X. Liu, M. McDonnell, Z.L. Feng*, "Tool-workpiece stick-slip conditions and their effects on torque and heat generation rate in the friction stir welding." Acta Materialia, vol. 213, article 116969, July 2021 [DOI].

157.      D. Xie, Z.Y. Lyu, M. Fan, H.B. Chew, P.K. Liaw, H. Bei, Z.W. Zhang, Y.F. Gao*, "Micromechanical origin for the enhanced ductility in twinless duplex Mg-Li alloys." Materials Science and Engineering A, vol. 815, article 141305, May 2021 [DOI].

156.      X. Cai*, W. Liu*, X.P. Shen*, Y.F. Gao*, "Flow-coupled cohesive interface framework for simulating heterogeneous crack morphology and resolving numerical divergence in hydraulic fracture." Extreme Mechanics Letters, vol. 45, article 101281, May 2021 [DOI].

155.      W.D. Li*, D. Xie, D.Y. Li, Y. Zhang, Y.F. Gao*, P.K. Liaw*, "Mechanical behavior of high-entropy alloys." Progress in Materials Science, vol. 118, article 100777, May 2021 [DOI].

154.      Q. Ding*, H. Bei*, X. Wei, Y.F. Gao, Z. Zhang*, "Nano-twin induced exceptionally superior cryogenic mechanical properties of a Ni-based GH3536 (Hastelloy X) superalloy." Materials Today Nano, vol. 14, article 100110, June 2021 [DOI].

153.      D. Xie, Z.Y. Lyu, Y. Li, P.K. Liaw, H.B. Chew, Y. Ren, Y. Chen, K. An, Y.F. Gao*, "In situ monitoring of dislocation, twinning, and detwinning modes in an extruded magnesium alloy under cyclic loading conditions." Materials Science and Engineering A, vol. 806, article 140860, March 2021 [DOI].

152.      W. Niu, Y.F. Gao*, "Concomitant oxidation-diffusion-creep processes for stress generation and suppression of oxide-alloy interfacial instabilities." Journal of the Mechanics and Physics of Solids, vol. 146, article 104218, January 2021 [DOI].

2020

151.      X. Cai, Y.F. Gao*, X. Wang, W. Zhang, W. Liu*, X.P. Shen, W. Zhang, Z. Yu*, Z. Feng*, "Triaxial constraint and tensile strength enhancement in brazed joints." Metallurgical and Materials Transactions A, vol. 51, iss. 11, pp. 5587-5596, November 2020 [DOI].

150.      Y.F. Gao*, W. Zhang, P.J. Shi, W.L. Ren, Y.B. Zhong, "A mechanistic interpretation of the strength-ductility trade-off and synergy in lamellar microstructures." Materials Today Advances, vol. 8, article 100103, December 2020 [DOI].

149.      J.X. Wen, R. Cao*, H.Y. Che, H. Dong, H.Y. Zhang, Y.J. Yan, Y.F. Gao*, P.K. Liaw*, "The oxidation effect on the cracking behavior of a Co-based alloy under thermal shocks." Corrosion Science, vol. 173, article 108828, August 2020 [DOI].

148.      Q. Ding, H. Bei*, X. Zhao, Y.F. Gao, Z. Zhang*, "Processing, microstructures and mechanical properties of a Ni-based single crystal superalloy." Crystals, vol. 10, iss. 7, article 572, July 2020 [DOI].

147.      Y. Cui, Y.F. Gao, H.B. Chew*, "Two-scale porosity effects on cohesive crack growth in a ductile media," International Journal of Solids and Structures, vol. 200-201, pp. 188-197, September 2020 [DOI].

146.      W. Zhang, Y.F. Gao*, Z.L. Feng*, X. Wang, S. Zhang, L. Huang, Z.W. Huang*, L. Jiang*, "Ductility limit diagrams for superplasticity and forging of high temperature polycrystalline materials." Acta Materialia, vol. 194, pp. 378-386, August 2020 [DOI].

145.      J.X. Wen, R. Cao*, Y.F. Gao*, "Mysterious failure in load-free superalloys under repeated thermal shocks," Acta Materialia, vol. 194, pp. 276-282, August 2020 [DOI].

144.      X.Q. Zhu, H. Wang*, S. Allu, Y.F. Gao, E. Cakmak, E.J. Hopkins, G.M. Veith, Z.P. Wang, "Investigation on capacity loss mechanisms of lithium-ion pouch cells under mechanical indentation conditions." Journal of Power Sources, vol. 465, article no. 228314, July 2020 [DOI].

143.      Y.F. Gao*, Z. Xue, Z. Yu*, "Failure mode maps of lap joints under the tensile shear testing condition." Extreme Mechanics Letters, vol. 37, article no. 100728, May 2020 [DOI].

142.      X. Wang, Y.F. Gao*, M. McDonnell, Z.L. Feng*, "On the solid-state-bonding mechanism in friction stir welding processes." Extreme Mechanics Letters, vol. 37, article no. 100727, May 2020 [DOI].

141.      T.K. Liu, W. Guo, M.L. Crespillo, K. Jin, Y. Zhang*, H. Bei*, Y.F. Gao*, "Indirectly probing the structural changes in ion-irradiated Zr-based metallic glasses from small scale mechanical tests." Intermetallics, vol. 121, article no. 106794, June 2020 [DOI].

140.      D. Xie, R. Feng, P.K. Liaw, H. Bei*, Y.F. Gao*, "Tensile creep behavior of an equiatomic CoCrNi medium entropy alloy." Intermetallics, vol. 121, article no. 106775, June 2020 [DOI].

139.      X.Q. Zhu, H. Wang*, X. Wang, Y.F. Gao, S. Allu, E. Cakmak, Z.P. Wang, "Internal short circuit and failure mechanisms of lithium-ion pouch cells under mechanical indentation abuse conditions: an experimental study." Journal of Power Sources, vol. 455, article no. 227939, April 2020 [DOI].

138.      G. Qin, R. Chen*, X. Li, P.K. Liaw, Y.F. Gao, L. Wang, Y. Su, H. Ding, J. Guo, "An as-cast high entropy alloy with remarkable mechanical properties strengthened by nanometer precipitates." Nanoscale, vol. 12, iss. 6, pp. 3965-3976, February 2020 [DOI].

137.      Y.C. Zhao*, Y.F. Gao*, "Remarks on the notch sensitivity of bulk metallic glasses." JOM, vol. 72, iss. 2, pp. 877-882, February 2020 [DOI].

136.      J.X. Wen, H.Y. Che, R. Cao*, H. Dong, Y.X. Ye, H.Y. Zhang, J. Brechtl, Y.F. Gao*, P.K. Liaw*, "Evolution of the mechanical properties of a cobalt-based alloy under thermal shocks." Materials & Design, vol. 188, 108425, March 2020 [DOI].

135.      W. Zhang, X. Wang, Y. Wang, X. Yu, Y.F. Gao*, Z. Feng*, "Type IV failure in weldment of creep resistant ferritic alloys: II. creep fracture and lifetime prediction." Journal of the Mechanics and Physics of Solids, vol. 134, 103775, January 2020 [DOI].

134.      W. Zhang, X. Wang, Y. Wang, X. Yu, Y.F. Gao*, Z. Feng*, "Type IV failure in weldment of creep resistant ferritic alloys: I. micromechanical origin of creep strain localization in the heat affected zone." Journal of the Mechanics and Physics of Solids, vol. 134, 103774, January 2020 [DOI].

133.      X. Wang, W. Zhang, Y. Zhao, H. Bei, Y.F. Gao*, "Micromechanical investigation of the role of percolation on ductility enhancement in metallic glass composites." Materials Science and Engineering A, vol. 769, article number 138531, January 2020 [DOI].

2019

132.      Q. Ding, Y. Zhang, X. Chen, X. Fu, D. Chen, S. Chen, L. Gu, F. Wei, H. Bei, Y.F. Gao, M. Wen, J. Li, Z. Zhang, T. Zhu*, R.O. Ritchie*, Q. Yu*, "Tuning element distribution, structure and properties by composition in high-entropy alloys." Nature, vol. 574, pp. 223-227, October 9, 2019 [DOI].

131.      G. Qin, R. Chen*, P.K. Liaw, Y.F. Gao, X. Li, H. Zheng, L. Wang, Y. Su, J. Guo, H. Fu, "A novel face-centered-cubic high-entropy alloy strengthened by nanoscale precipitates." Scripta Materialia, vol. 172, pp. 51-55, November 2019 [DOI].

130.      J.H. Lee, G.M. Pharr*, Y.F. Gao*, "Corrections to the stiffness relationship in 3-sided and conical indentation problems." International Journal of Solids and Structures, vol. 166, pp. 154-166, July 2019 [DOI].

129.      X. Wang, Z. Huang*, B. Cai*, N. Zhou, O. Magdysyuk, Y.F. Gao, S. Srivatsa, L. Tan, L. Jiang, "Formation mechanism of abnormally large grains in a polycrystalline nickel-based superalloy during heat treatment processing." Acta Materialia, vol. 168, pp. 287-298, April 2019 [DOI].

128.      P. Shi, W. Ren*, T. Zheng, Z. Ren, X. Hou, J. Peng, P. Hu, Y.F. Gao, Y. Zhong*, P.K. Liaw*, "Enhanced strength-ductility synergy in ultrafine-grained eutectic high-entropy alloys by inheriting microstructural lamellae." Nature Communications, vol. 10, article no. 489, January 30, 2019 [DOI].

127.      X. Xie, Y.C. Lo, Y. Tong, J.W. Qiao, G.Y. Wang, S. Ogata*, H. Qi, K.A. Dahmen, Y.F. Gao*, P.K. Liaw*, "Origin of serrated flow in bulk metallic glasses." Journal of the Mechanics and Physics of Solids, vol. 124, pp. 634-642, March 2019 [DOI].

126.      H.Y. Diao, D. Ma, R. Feng, T.K. Liu, C. Pu, C. Zhang, W. Guo, J. Poplawsky, Y.F. Gao*, P.K. Liaw*, "Novel NiAl-strengthened high entropy alloys with balanced tensile strength and ductility." Materials Science and Engineering A, vol. 742, pp. 636-647, January 2019 [DOI].

2018

125.      Z. Wu, W. Guo, K. Jin, J.D. Poplawsky, Y.F. Gao, H. Bei*, "Enhanced strength and ductility of a tungsten-doped CoCrNi medium entropy alloy." Journal of Materials Research, vol. 33, iss. 19, pp. 3301-3309, October 2018 [DOI].

124.      T.K. Liu, Y.F. Gao*, H. Bei*, K. An*, "In situ neutron diffraction study on tensile deformation behavior of carbon strengthened CrCoFeMnNi high entropy alloys at room and elevated temperatures." Journal of Materials Research, vol. 33, iss. 19, pp. 3192-3203, October 2018 [DOI].

123.      H.L. Jia, X. Xie, L. Zhao, J.F. Wang, Y.F. Gao, K.A. Dahmen, W.D. Li*, P.K. Liaw*, C.L. Ma*, "Effects of similar-element-substitution on the glass-forming ability and mechanical behaviors of Ti-Cu-Zr-Pd bulk metallic glasses." Journal of Materials Research and Technology, vol. 7, iss. 3, pp. 261-269, July-September 2018 [DOI].

122.      K. Jin, Y. Xia, M. Crespillo, H. Xue, Y. Zhang, Y.F. Gao, H. Bei*, "Quantifying early stage irradiation damage from nanoindentation pop-in tests." Scripta Materialia, vol. 157, 49-53, December 2018 [DOI].

121.      H.L. Jia, G.Y. Wang, S.Y. Chen, Y.F. Gao*, W.D. Li*, P.K. Liaw*, "Fatigue and fracture behavior of bulk metallic glasses and their composites." Progress in Materials Science, vol. 98, 168-248, October 2018 [DOI].

120.      W.D. Li*, P.K. Liaw, Y.F. Gao*, "Fracture resistance of high entropy alloys: a review." Intermetallics, vol. 99, 69-83, August 2018 [DOI].

119.      J.H. Lee, Y.F. Gao*, A.F. Bower*, H.T. Xu, G.M. Pharr*, "Stiffness of frictional contact of dissimilar elastic solids." Journal of the Mechanics and Physics of Solids, vol. 112, pp. 318-333, March 2018 [DOI].

2017

118.      J.L. Shi, X.J. Zhao, L.Y. Zhang, X.L. Xue, Z.X. Guo, Y.F. Gao, S.F. Li*, "An oxidized magnetic Au single atom on doped TiO2(110) becomes a high performance CO oxidation catalyst due to charge effect." Journal of Materials Chemistry A, vol. 5, iss. 36, pp. 19316-19322, September 2017 [DOI].

117.      Z. Wu, M.C. Troparevsky, Y.F. Gao, J.R. Morris, G.M. Stocks, H. Bei*, "Phase stability, physical properties and strengthening mechanisms of concentrated solid solution alloys." Current Opinion in Solid State and Materials Science, vol. 21, iss. 5, pp. 267-284, October 2017 [DOI].

116.      T.K. Liu, Y.F. Gao*, H. Bei*, "Probing elastically or plastically induced structural heterogeneity in bulk metallic glasses by nanoindentation pop-in tests." AIP Advances, vol. 7, iss. 8, 085216, August 2017 [DOI].

115.      M. Petrova, Z.W. Gao, Y. Liu, Y.F. Gao*, W. He*, "Cohesive finite element simulations of contraction and shape effects on cell de-adhesion." Journal of Mechanics in Medicine and Biology, vol. 17, no. 6, 1750091, 2017 [DOI].

114.      C. Pu, Y.F. Gao*, Y.L. Wang, T.L. Sham, "Diffusion-coupled cohesive interface simulations of stress-corrosion intergranular cracking in polycrystalline materials." Acta Materialia, vol. 136, pp. 21-31, September 2017 [DOI] [Corrigendum].

113.      T.K. Liu, Z. Wu, A.D. Stoica, Q. Xie, W. Wu, Y.F. Gao*, H. Bei*, K. An*, "Twinning-mediated work hardening and texture evolution in CrCoFeMnNi high entropy alloys at cryogenic temperature." Materials & Design, vol. 131, pp. 419-427, October 2017 [DOI].

112.      W. Zhang, Y.F. Gao*, Y.Z. Xia, H. Bei, "Indentation Schmid factor and incipient plasticity by nanoindentation pop-in tests in hexagonal close-packed single crystals." Acta Materialia, vol. 134, pp. 53-65, August 2017 [DOI].

111.      K. Jin, Y.F. Gao, H. Bei*, "Intrinsic properties and strengthening mechanism of monocrystalline Ni-containing ternary concentrated solid solutions." Materials Science and Engineering A, vol. 695, pp. 74-79, May 2017 [DOI].

110.      G. Song, Z. Sun, L. Li, B. Clausen, S.Y. Zhang, Y.F. Gao, P.K. Liaw*, "High temperature deformation mechanism in hierarchical and single precipitate strengthened ferritic alloys by in situ neutron diffraction studies." Scientific Reports, 7, 45965, April 2017 [DOI].

109.      W.J. Ding, J.B. Zhu, Z. Wang, Y.F. Gao, D. Xiao, Y. Gu, Z.Y. Zhang, W.G. Zhu*, "Prediction of intrinsic two-dimensional ferroelectrics in In2Se3 and other III2-VI3 van der Waals materials." Nature Communications, 8, 14956, April 2017 [DOI].

108.      C.C. Yu, J.P. Chu*, H.L. Jia, Y.L. Shen, Y.F. Gao, P.K. Liaw, Y. Yokoyama, "Influence of thin-film metallic glass coating on fatigue behavior of bulk metallic glass: experiments and finite element modeling." Materials Science and Engineering A, vol. 692, pp. 146-155, April 2017 [DOI].

107.      Y. Song, X. Xie, J. Luo, P.K. Liaw*, H. Qi*, Y.F. Gao*, "Seeing the unseen: uncover the bulk heterogeneous deformation processes in metallic glasses through surface temperature decoding." Materials Today, vol. 20, iss. 1, 9-15, Jan-Feb 2017 [DOI].

106.      G. Song, Z. Sun, J. Poplawsky, Y.F. Gao, P.K. Liaw*, "Microstructural evolution of single Ni2TiAl or hierarchical NiAl/Ni2TiAl precipitates in Fe-Ni-Al-Cr-Ti ferritic alloys during thermal treatment for elevated-temperature applications." Acta Materialia, vol. 127, pp. 1-16, April 2017 [DOI].

2016

105.      J.L. Shi, J.H. Wu, X.J. Zhao, X.L. Xue, Y.F. Gao, Z.X. Guo, S.F. Li*, "Substrate co-doping modulates electronic metal-support interactions and significantly enhances single-atom catalysis." Nanoscale, vol. 8, iss. 46, pp. 19256-19262 December 2016 [DOI].

·         This article is also featured in the inside back cover of the published issue. See link at [DOI].

104.      W.D. Li, Y.F. Gao*, H. Bei*, "Instability analysis and free volume simulations of shear band directions and arrangements in notched metallic glasses." Scientific Reports, vol. 6, art no. 34878, October 2016 [DOI].

103.      W.D. Li, H. Bei*, Y.F. Gao*, "Effects of geometric factors and shear band patterns on notch sensitivity in bulk metallic glasses." Intermetallics, vol. 79, pp. 12-19, December 2016 [DOI].

102.      S.F. Li*, X.J. Zhao, J.L. Shi, Y. Jia, Z.X. Guo, J.H. Cho, Y.F. Gao, Z.Y. Zhang, "Interplay between spin-selection rule and frontier orbital theory in O2 activation and CO oxidation by single-atom-sized catalysts on TiO2 (110)." Physical Chemistry and Chemical Physics, vol. 18, iss. 36, pp. 24872-24879, September 2016 [DOI].

·         This article is also featured in the inside back cover of the published issue. See link at [DOI].

101.      W. Wu, Y.F. Gao, N. Li, C.M. Parish, W.J. Liu, P.K. Liaw, K. An*, "Intragranular twinning, detwinning, and twinning-like lattice reorientation in magnesium alloys." Acta Materialia, vol. 121, pp. 15-23, December 2016 [DOI].

100.      Z.W. Gao, Y.F. Gao*, "Why do receptor-ligand bonds in cell adhesion cluster into discrete focal-adhesion sites?" Journal of the Mechanics and Physics of Solids, vol. 95, pp. 557-574, October 2016 [DOI].

99.      Z. Wu, Y.F. Gao*, H. Bei*, "Thermal activation mechanisms and Labusch-type strengthening analysis for a family of high-entropy and equiatomic solid-solution alloys." Acta Materialia, vol. 120, pp. 108-119, November 2016 [DOI].

98.      Y. Wu, H.X. Li, J.E. Gao, H. Wang, X.J. Liu, M.K. Miller, H. Bei, Y.F. Gao, Z.P. Lu*, "Nanocrystallization in a Cu-doped Fe-based metallic glass." Journal of Alloys and Compounds, vol. 688, Part B, pp. 822-827, December 2016 [DOI].

97.      Z.W. Gao, W. Zhang, Y.F. Gao*, "Scale dependence of interface dislocation storage governing the frictional sliding of single asperities." Modelling and Simulation in Materials Science and Engineering, vol. 24, iss. 6, 065010, August 2016 [DOI].

96.      Y.Z. Xia*, Y.F. Gao, G.M. Pharr, H. Bei, "Single versus successive pop-in modes in nanoindentation tests of single crystals." Journal of Materials Research, vol. 31, iss. 14, pp. 2065-2075, July 2016 [DOI].

95.      E. Mafi, X. Tao, W.G. Zhu, Y.F. Gao, C.M. Wang, Y. Gu*, "Generation and the role of dislocations in single-crystalline phase-change In2Se3 nanowires under electrical pulses." Nanotechnology, vol. 27, no. 33, 335704, August 2016 [LINK].

94.      A. Datye, L. Li, W. Zhang, Y.J. Wei, Y.F. Gao*, G.M. Pharr*, "Extraction of anisotropic mechanical properties from nanoindentation of SiC-6H single crystals." Trans. of ASME, Journal of Applied Mechanics, vol. 83, art no. 091003, September 2016 [DOI].

93.      Y.F. Gao*, H. Bei*, "Strength statistics of single crystals and metallic glasses under small stressed volumes." Progress in Materials Science, vol. 82, pp. 118-150, September 2016 [DOI].

92.      Z. Sun, G. Song, T.A. Sisneros, B. Clausen, C. Pu, L. Li, Y.F. Gao, P.K. Liaw*, "Load partitioning between the bcc-iron matrix and NiAl-type precipitates in a ferritic alloy on multiple length scales." Scientific Reports, vol. 6, art no. 23137, March 2016 [DOI].

91.      Y.F. Gao*, "Deformation fields near a steady fatigue crack with anisotropic plasticity." Extreme Mechanics Letters, vol. 6, pp. 45-51, March 2016 [DOI].

90.      H. Bei*, Y.Z. Xia, R.I. Barabash, Y.F. Gao*, "A tale of two mechanisms: strain-softening versus strain-hardening in single crystals under small stressed volumes." Scripta Materialia, vol. 110, pp. 48-52, January 2016 [DOI].

2015

89.      X.J. Zhao, X.L. Xue, Z.X. Guo, Y. Jia, S.F. Li*, Z.Y. Zhang*, Y.F. Gao*, "Intriguing structures and magic sizes of heavy noble metal nanoclusters around size 55 governed by relativistic effect and covalent bonding." Journal of Chemical Physics, vol. 143, iss. 17, art no. 174302, November 7, 2015 [DOI].

88.      G. Song, Z. Sun, L. Li, X. Xu, M. Rawlings, C.H. Liebscher, B. Clausen, J. Poplawsky, D.N. Leonard, S. Huang, Z. Teng, C.T. Liu, M.D. Asta, Y.F. Gao, D.C. Dunand, G. Ghosh, M.W. Chen, M.E. Fine, P.K. Liaw*, "Ferritic alloy with extreme creep resistance via coherent hierarchical precipitates." Scientific Reports, vol. 5, art no. 16327, November 2015 [DOI].

87.      W.D. Li, Y.F. Gao*, H. Bei*, "On the correlation between microscopic structural heterogeneity and embrittlement behavior in metallic glasses." Scientific Reports, vol. 5, art no. 14786, October 2015 [DOI].

86.      L. Huang, C. Pu, R.K. Fisher, D.J.H. Mountain, Y.F. Gao, P.K. Liaw, W. Zhang, W. He*, "A Zr-based bulk metallic glass for future stent applications: materials properties, finite element modeling, and in vitro human vascular cell response." Acta Biomaterialia, vol. 25, pp. 356-368, October 2015 [DOI].

·         News reported on this work in Materials Today [Link] , August 12, 2015.

85.      Y. Wu, A.D. Stoica, Y. Ren, D. Ma*, Y.F. Gao*, H. Bei*, "Direct synchrotron x-ray measurements of local strain fields in elastically and plastically bent metallic glasses." Intermetallics, vol. 67, pp. 132-137, December 2015 [DOI].

84.      Z. Wu, Y.F. Gao, H. Bei*, "Single crystal plastic behavior of a single-phase, face-center-cubic-structured, equiatomic FeNiCrCo alloy." Scripta Materialia, vol. 109, pp. 108-112, December 2015 [DOI].

83.      Y.F. Gao*, B.C. Larson, "Displacement fields and self-energies of circular and polygonal dislocation loops in homogeneous and layered anisotropic solids." Journal of the Mechanics and Physics of Solids, vol. 83, pp. 104-128, October 2015 [DOI].

82.      Y. Wu, H. Bei*, Y.L. Wang, Z.P. Lu, E.P. George, Y.F. Gao*, "Deformation-induced spatiotemporal fluctuation, evolution and localization of strain fields in a bulk metallic glass." International Journal of Plasticity, vol. 71, pp. 136-145, August 2015 [DOI].

81.      Y.F. Gao*, B.C. Larson, J.H. Lee, L. Nicola, J.Z. Tischler, G.M. Pharr, "Lattice rotation patterns and strain gradient effects in face-centered-cubic single crystals under spherical indentation." Trans. of ASME, Journal of Applied Mechanics, vol. 82, iss. 6, art no. 061007 (10 pages), June 2015 [DOI].

80.      H.L. Jia, L.L. Zheng, W.D. Li, N. Li, J.W. Qiao, G.Y. Wang, Y. Ren, P.K. Liaw, Y.F. Gao*, "Insights from the lattice strain evolution on deformation mechanisms in metallic-glass-matrix composites." Metallurgical and Materials Transactions A, vol. 46, iss. 6, pp. 2431-2442, June 2015 [DOI].

79.      J.N. Zhang, J.H. Lee, J. Lou*, Y.F. Gao*, "Integration of contact size dependence and thermal activation in atomic friction." Extreme Mechanics Letters, vol. 2, pp. 60-64, March 2015 [DOI].

78.      J. Kwon, M.L. Bowers, M.C. Brandes, V. McCreary, I.M. Robertson, P. Sudharshan Phani, H. Bei, Y.F. Gao, G.M. Pharr, E.P. George, M.J. Mills*, "Characterization of dislocation structures and deformation mechanisms in as-grown and deformed directionally solidified NiAl-Mo composites." Acta Materialia, vol. 89, pp. 315-326, May 2015 [DOI].

77.      Y. Liu, H. Liu, Y.F. Gao*, "Can mushroom-shaped fibers enhance the bio-adhesive performance?" Journal of Mechanics in Medicine and Biology, vol. 15, iss. 5, art no. 1550068, October 2015 [DOI].

76.      Y. Liu, Y. Luo, D. Wang, Y.F. Gao*, "Alignment of cellular focal contacts and their shapes by substrate anisotropy." Journal of Mechanics in Medicine and Biology, vol. 15, iss. 5, art no. 1550067, October 2015 [DOI].

75.      C. Pu, Y.F. Gao*, "Crystal plasticity analysis of stress partitioning mechanisms and their microstructural dependence in advanced steels." Trans. of ASME, Journal of Applied Mechanics, vol. 82, iss. 3, 031003, March 2015 [DOI].

74.      W. Chen, P. Cui, W.G. Zhu, E. Kaxiras, Y.F. Gao, Z.Y. Zhang*, "Atomistic mechanisms for bilayer growth of graphene on metal substrates." Physical Review B, vol. 91, iss. 4, art no. 045408, January 2015 [DOI].

73.      Y. Liu, Y.F. Gao*, "Non-uniform breaking of molecular bonds, peripheral morphology and releasable adhesion by elastic anisotropy in bio-adhesive contacts." Journal of the Royal Society Interface, vol. 12, iss. 102, art no. 20141042, January 2015 [DOI].

72.      S.Y. Huang, Y.F. Gao*, K. An, L.L. Zheng, W. Wu, Z.K. Teng, P.K. Liaw *, "Deformation mechanisms in a precipitation-strengthened ferritic superalloy revealed by in situ neutron diffraction studies at elevated temperatures." Acta Materialia, vol. 83, pp. 137-148, January 2015 [DOI].

2014

71.      C.H. Yu, M.W. Bird, C.W. Huang, C.S. Chen, Y.F. Gao, K.W. White, C.H. Hsueh*, "Micromechanics modeling of creep fracture of zirconium diboride-silicon carbide composites at 1400-1700 oC." Journal of the European Ceramic Society, vol. 34, iss. 16, pp. 4145-4165, December 2014 [DOI].

70.      P.E. Loya, Y.Z. Xia, C. Peng, H. Bei, P. Zhang, J. Zhang, E.P. George, Y.F. Gao, J. Lou*, "Yield strength dependence on strain rate of molybdenum-alloy nanofibers." Applied Physics Letters, vol. 104, iss. 25, 251909, June 2014 [DOI].

69.      Y.Z. Xia, H. Bei*, Y.F. Gao*, D. Catoor, E.P. George, "Synthesis, characterization, and nanoindentation response of single crystal Fe-Cr-Ni alloys with FCC and BCC structures." Materials Science and Engineering A, vol. 611, pp. 177-187, August 2014 [DOI].

68.      Y.Z. Xia, T.L. Li*, F. Ren, Y.F. Gao, H. Wang*, "Failure analysis of pinch-torsion tests as a thermal runaway risk evaluation method of Li-ion cells." Journal of Power Sources, vol. 265, pp. 356-362, November 2014 [DOI].

67.      Y.H. Zhang, Y.F. Gao, L. Nicola*, "Lattice rotation caused by wedge indentation of a single crystal: dislocation dynamics compared to crystal plasticity simulations." Journal of the Mechanics and Physics of Solids, vol. 68, pp. 267-279, August 2014 [DOI].

66.      H.L. Jia, F.X. Liu, Z.N. An, W.D. Li, G.Y. Wang, J.P. Chu, J.S.C. Jang, Y.F. Gao, P.K. Liaw*, "Thin-film metallic glasses for substrate fatigue-property improvements." Thin Solid Films (invited review), vol. 561, pp. 2-27, June 2014 [DOI].

65.      K.E. Johanns*, J.H. Lee, Y.F. Gao, G.M. Pharr, "An evaluation of the advantages and limitations in simulating indentation cracking with cohesive zone finite elements." Modelling and Simulations in Materials Science and Engineering, vol. 22, no. 1, 015011, January 2014 [DOI].

2013

64.      W.D. Li, H. Bei*, Y. Tong, W. Dmowski, Y.F. Gao*, "Structural heterogeneity induced plasticity in bulk metallic glasses: From well-relaxed fragile glass to metal-like behavior." Applied Physics Letters, vol. 103, iss. 17, 171910, October 2013 [DOI].

63.      S.F. Li, X.J. Zhao, X.S. Xu, Y.F. Gao*, Z.Y. Zhang*, "Stacking principle and magic sizes of transition metal nanoclusters based on generalized Wulff construction." Physical Review Letters, vol. 111, iss. 11, 115501, 9/13/2013 [DOI].

62.      W.D. Li, H. Bei*, J. Qu, Y.F. Gao*, "Effects of machine stiffness on the load-displacement curve during spherical nano-indentation." Journal of Materials Research, vol. 28, iss. 14, pp. 1903-1911, July 2013 [DOI].

61.      J. Kwon, M.C. Brandes, P. Sudharshan Phani, A.P. Pilchak, Y.F. Gao, E.P. George, G.M. Pharr, M.J. Mills*, "Characterization of deformation anisotropies in an alpha-Ti alloy by nanoindentation and electron microscopy." Acta Materialia, vol. 61, iss. 13, pp. 4743-4756, August 2013 [DOI].

60.      C.H. Yu, C.W. Huang, C.S. Chen, Y.F. Gao, C.H. Hsueh*, "A micromechanics study of competing mechanisms for creep fracture of zirconium diboride polycrystals." Journal of the European Ceramic Society, vol. 33, iss. 10, pp. 1625-1637, September 2013 [DOI].

59.      D. Catoor*, Y.F. Gao, J. Geng, M.J.N.V. Prasad, E.G. Herbert, K.S. Kumar, G.M. Pharr, E.P. George, "Incipient plasticity and deformation mechanisms in single-crystal Mg during spherical nanoindentation." Acta Materialia, vol. 61, iss. 8, pp. 2953-2965, May 2013 [DOI].

58.      S.H. Wee, Y.F. Gao, Y.L. Zuev, K.L. More, J.Y. Meng, J.X. Zhong, G.M. Stocks, A. Goyal*, "Self-assembly of nanostructured, complex, multication films via spontaneous phase separation and strain-driven ordering." Advanced Functional Materials, vol. 23, pp. 1912-1918, April 2013 [DOI].

57.      L.L. Zheng, Y.F. Gao*, Y.D. Wang, A.D. Stoica, K. An, X.L. Wang, "Grain orientation dependence of lattice strains and intergranular damage rates in polycrystals under cyclic loading." Scripta Materialia, vol. 68, iss. 5, pp. 265-268, March 2013 [DOI].

2012

56.      W. Wu, S.Y. Lee*, A.M. Paradowska, Y.F. Gao, P.K. Liaw, "Twinning-detwinning behavior during fatigue-crack propagation in a wrought magnesium alloy AZ31B." Materials Science and Engineering A, vol. 556, pp. 278-286, October 2012 [DOI].

55.      T.L. Li, H. Bei, J.R. Morris, E.P. George, Y.F. Gao*, "Scale effects in the convoluted thermal/spatial statistics of plasticity initiation in small stressed volumes during nanoindentation." Materials Science and Technology (invited), special issue in: Hardness across the Multi-Scales of Structure and Loading Rate (edited by R. Armstrong et al.), vol. 28, no. 9-10, pp. 1055-1059, 2012 [DOI].

54.      C.H. Yu, C.W. Huang, C.S. Chen, Y.F. Gao, C.H. Hsueh*, "Effects of grain boundary heterogeneities on creep fracture studied by rate-dependent cohesive model." Engineering Fracture Mechanics, vol. 93, pp. 48-64, October 2012 [DOI].

53.      J.H. Lee, Y.F. Gao*, K.E. Johanns, G.M. Pharr, "Cohesive interface simulations of indentation cracking as a fracture toughness measurement method for brittle materials." Acta Materialia, vol. 60, iss. 15, pp. 5448-5467, 2012 [DOI].

52.      Z.N. An, W.D. Li, F.X. Liu, P.K. Liaw, Y.F. Gao*, "Interface constraints on shear band patterns in bonded metallic glass films under micro-indentation." Metallurgical and Materials Transactions A, vol. 43, iss. 8, pp. 2729-2741, 2012 [DOI].

51.      M.C. Liu, J.C. Huang*, K.W. Chen, J.F. Lin, W.D. Li, Y.F. Gao, T.G. Nieh, "Is the compression of tapered micro and nanopillar samples a legitimate technique for the identification of deformation mode change in metallic glasses?" Scripta Materialia, vol. 66, iss. 10, pp. 817-820, 2012 [DOI].

50.      S.Y. Huang, D.W. Brown, B. Clausen, Z.K. Teng, Y.F. Gao, P.K. Liaw*, "In situ neutron-diffraction studies on the creep behavior of a ferritic superalloy." Metallurgical and Materials Transactions A, vol. 43, no. 5, pp. 1497-1508, 2012 [DOI].

49.      J.H. Lee, Y.F. Gao*, G.M. Pharr, "Effective Poisson's ratio from combined normal and lateral contacts of single crystals." Journal of Materials Research, vol. 27, iss. 1, pp. 182-191, 2012 [DOI].

2011

48.      L. Wang, H. Bei, Y.F. Gao, Z.P. Lu, T.G. Nieh*, "Effect of residual stresses on the onset of yielding in a Zr-based metallic glass." Acta Materialia, vol. 59, iss. 20, pp. 7627-7633, 2011 [DOI].

47.      L.L. Zheng, Y.F. Gao*, S.Y. Lee, R.I. Barabash, J.H. Lee, P.K. Liaw, "Intergranular strain evolution near fatigue crack tips in polycrystalline metals." Journal of the Mechanics and Physics of Solids, vol. 59, iss. 11, pp. 2307-2322, 2011 [DOI].

46.      J. Annett, Y.F. Gao*, G.L.W. Cross*, E.G. Herbert, B.N. Lucas, "Mesoscale friction anisotropy revealed by slidingless tests." Journal of Materials Research, vol. 26, no. 18, pp. 2373-2378, 2011 [DOI].

45.      C. Cantoni*, Y.F. Gao, S.H. Wee, E.D. Specht, J. Gazquez, J.Y. Meng, S.J. Pennycook, A. Goyal, "Strain-driven oxygen deficiency in self-assembled, nanostructured, composite oxide films." ACS Nano, vol. 5, iss. 6, pp. 4783-4789, 2011 [DOI].

44.      L. Wang, H. Bei, T.L. Li, Y.F. Gao, E.P. George, T.G. Nieh*, "Determining the activation energies and slip systems for dislocation nucleation in body-centered cubic Mo and face-centered cubic Ni single crystals." Scripta Materialia, vol. 65, pp. 179-182, 2011 [DOI].

43.      T.L. Li, Y.F. Gao*, H. Bei, E.P. George, "Indentation Schmid factor and orientation dependence of nanoindentation pop-in behavior of NiAl single crystals." Journal of the Mechanics and Physics of Solids, vol. 59, pp. 1147-1162, 2011 [DOI].

42.      Y.F. Gao*, L. Wang, H. Bei, T.G. Nieh, "On the shear band direction in metallic glasses." Acta Materialia, vol. 59, pp. 4159-4167, 2011 [DOI].

41.      R.I. Barabash*, H. Bei, G.E. Ice, Y.F. Gao, O.M. Barabash, "3D x-ray strain microscopy in two-phase composites at submicron length scales." JOM (invited), vol. 63, no. 3, pp. 30-34, March 2011 [LINK].

40.      L. Wang, H. Bei, Y.F. Gao, Z.P. Lu, T.G. Nieh*, "Effect of residual stresses on the hardness of bulk metallic glasses." Acta Materialia, vol. 59, pp. 2858-2864, 2011 [DOI].

39.      R.I. Barabash*, H. Bei, Y.F. Gao, G.E. Ice, "Interface strength in NiAl-Mo composites from 3D x-ray microdiffraction." Scripta Materialia, vol. 64, iss. 9, pp. 900-903, 2011 [DOI].

38.      J.H. Lee, Y.F. Gao*, "Mixed-mode singularity and temperature effects on dislocation nucleation in strained interconnects." International Journal of Solids and Structures, vol. 48, pp. 1180-1190, 2011 [DOI].

2010

37.      Y.F. Gao*, "A Peierls perspective on mechanisms of atomic friction." Journal of the Mechanics and Physics of Solids, vol. 58, iss. 12, pp. 2023-2032, 2010 [DOI].

36.      R.I. Barabash*, Y.F. Gao, G.E. Ice, O.M. Barabash, J.-S. Chung, W. Liu, R. Kroeger, H. Lohmeyer, K. Sebald, J. Gutowski, T. Boettcher, D. Hommel, "Mapping strain gradients in the FIB-structured InGaN/GaN multilayered films with 3D x-ray microbeam." Materials Science and Engineering A, special issue in Probing Strains and Dislocation Gradients with Diffraction, vol. 528, iss. 1, pp. 52-57, 2010 [DOI].

35.      R.I. Barabash*, H. Bei, Y.F. Gao, G.E. Ice, "Indentation-induced localized deformation and elastic strain partitioning in composites at submicron length scale." Acta Materialia, vol. 58, iss. 20, pp. 6784-6789, 2010 [DOI].

34.      G.M. Pharr*, E.G. Herbert, Y.F. Gao, "The indentation size effect: a critical examination of experimental observations and mechanistic interpretations." Annual Review of Materials Research (invited), vol. 40, pp. 271-292, June 2010 [LINK].

33.      C.J. Su, J.A. LaManna, Y.F. Gao*, W.C. Oliver, G.M. Pharr, "Plastic instability in amorphous selenium near its glass transition temperature." Journal of Materials Research, vol. 25, no. 6, pp. 1015-1019, June 2010 [DOI].

32.      Y. Yang*, J. Ye, J. Lu, Y.F. Gao, P.K. Liaw, "Metallic glasses: gaining plasticity for microsystems." JOM (invited), vol. 62, no. 2, pp. 93-98, February 2010 [LINK] [DOI].

31.      S. Zheng, W. Zhu, Y.F. Gao, G.M. Stocks, Z. Zhang*, "Kinetic Monte Carlo simulations of nanocolumn formation in two-component epitaxial growth." Applied Physics Letters, 96, 071913, 2010 [DOI] [LINK].

30.      R.I. Barabash*, H. Bei, Y.F. Gao, G.E. Ice, E.P. George, "3D x-ray microscope investigation of local dislocation densities and elastic strain gradients in a NiAl-Mo composite and exposed Mo micropillars as a function of pre-strain." Journal of Materials Research (invited), 25, 199-206, 2010 [Erratum] [DOI].

2009

29.      T.L. Li, J.H. Lee, Y.F. Gao*, "An approximate formulation of the effective indentation modulus of elastically anisotropic film-on-substrate systems." International Journal of Applied Mechanics (invited), special issue in Theoretical and Computational Nanomechanics (edited by P. Sharma), 1, 515-525, 2009 [LINK] [DOI].

28.      F.X. Liu*, F.Q. Yang, Y.F. Gao, W.H. Jiang, Y.F. Guan, P.D. Rack, O. Sergic, P.K. Liaw "Micro-scratch study of a magnetron-sputtered Zr-based metallic-glass film." Surface & Coatings Technology, 203, 3480-3484, 2009 [DOI].

27.      T.L. Li, J.H. Lee, Y.F. Gao*, G.M. Pharr, M. Huang, T.Y. Tsui, "Geometric effects on dislocation nucleation in strained electronics." Applied Physics Letters, 94, 171905, 2009 [DOI] [LINK].

2008

26.      Y.F. Gao*, J.Y. Meng, A. Goyal, G.M. Stocks, "Spatial ordering and anisotropy in surface stress domains and nanostructural evolution." JOM (invited), vol. 60, no. 9, pp. 54-58, September 2008 [LINK] [DOI].

25.      R. Barabash*, Y.F. Gao, Y. Sun, S. Lee, H. Choo, P.K. Liaw, D.W. Brown, G.E. Ice, "Neutron and x-ray diffraction studies and cohesive interface model of the fatigue crack deformation behavior." Philosophical Magazine Letters, 88(8), 553-565, 2008 [DOI].

24.      Y.F. Gao*, H.H. Yu, K.-S. Kim, "Micro-plasticity of surface steps under adhesive contact: Part II - Multiple-dislocation mediated contact loading." Journal of the Mechanics and Physics of Solids, 56, 2759-2772, 2008 [DOI].

23.      F.X. Liu, Y.F. Gao*, P.K. Liaw, "Rate-dependent deformation behavior of Zr-based metallic-glass coatings examined by nanoindentation." Metallurgical and Materials Transactions A, 39, 1862-1867, 2008 [DOI].

·        as part of the special issue, August 2008, Eds: P.K. Liaw, W.H. Jiang, G.J. Fan, H. Choo, and Y.F. Gao [DOI].

22.      Y.F. Gao*, H.T. Xu, W.C. Oliver, G.M. Pharr, "A comparison of Coulomb friction and friction stress models based on multidimensional nanocontact experiments." Trans. of ASME, Journal of Applied Mechanics, 75, 034504, 2008 [LINK] [DOI].

21.      Y.F. Gao*, J. Lou, "Dislocation nucleation and pileup under a wedge contact at nanoscale." Journal of Nanomaterials (invited), special issue in: Nanomechanics and Nanostructured Multifunctional Materials: Experiments, Theories and Simulations (edited by J. Wang and J. Lou), Article ID 380961, 2008 [LINK] [DOI].

20.      H. Bei, Y.F. Gao*, S. Shim, E.P. George, G.M. Pharr, "Strength differences arising from homogeneous versus heterogeneous dislocation nucleation." Physical Review B, 77, 060103(R), February 29, 2008 [LINK] [DOI].

19.      Y.F. Gao*, H.T. Xu, W.C. Oliver, G.M. Pharr, "Effective elastic modulus of film-on-substrate systems under normal and tangential contact." Journal of the Mechanics and Physics of Solids, 56, 402-416, 2008 [DOI].

2007

18.      F.X. Liu*, P.K. Liaw, W.H. Jiang, C.L. Chiang, Y.F. Gao, Y.F. Guan, J.P. Chu, P.D. Rack, "Fatigue-resistance enhancements by glass-forming metallic films." Materials Science and Engineering A, 468-470, pp. 246-252, 2007 [DOI].

17.      Y.F. Gao*, G.M. Pharr, "Multidimensional contact moduli of elastically anisotropic solids." Scripta Materialia, 57, 13-16, 2007 [DOI].

16.      S.M. Xia, Y.F. Gao*, A.F. Bower, L.C. Lev, Y.-T. Cheng, "Delamination mechanism maps for a strong elastic coating on an elastic-plastic substrate subjected to contact loading." International Journal of Solids and Structures, 44, 3685-3699, 2007 [DOI].

15.      Y.F. Gao*, B. Yang, T.G. Nieh, "Thermomechanical instability analysis of inhomogeneous deformation in amorphous alloys." Acta Materialia, 55, 2319-2327, 2007 [DOI].

14.      C. Fan*, Y.F. Gao, H.Q. Li, H. Choo, P.K. Liaw, A. Inoue, C.T. Liu, "Mechanical behavior of a Zr-based bulk metallic glass and its composite at cryogenic temperatures." Journal of Materials Research, 22, 445-452, 2007.

13.      H.H. Yu, P. Shrotriya, Y.F. Gao, K.-S. Kim*, "Micro-plasticity of surface steps under adhesive contact: Part I, surface yielding controlled by single-dislocation nucleation." Journal of the Mechanics and Physics of Solids, 55, 489-516, 2007 [DOI].

2006

12.      C. Fan*, P.K. Liaw, T.W. Wilson, H. Choo, Y.F. Gao, C.T. Liu, Th. Proffen, J.W. Richardson, "Pair distribution function study and mechanical behavior of as-cast and structurally relaxed Zr-based bulk metallic glasses." Applied Physics Letters, 89, 231920, 2006 [DOI].

11.      Y.F. Gao*, "An implicit finite element method for simulating inhomogeneous deformation and shear bands of amorphous alloys based on the free-volume model." Modelling and Simulation in Materials Science and Engineering, 14, 1329-1345, 2006 [DOI].

·         Codes developed in this paper are available for download [Help File] [Fortran Source File] [Abaqus Input File #1] [Abaqus Input File #2].

10.      Y.F. Gao*, B.N. Lucas, J.C. Hay, W.C. Oliver, G.M. Pharr, "Nanoscale incipient asperity sliding and interface micro-slip assessed by the measurement of tangential contact stiffness." Scripta Materialia, 55, 653-656, 2006 [DOI].

9.      Y.F. Gao, A.F. Bower*, "Elastic-plastic contact of a rough surface with Weierstrass profile." Proceeding of Royal Society London, Series A, 462, 319-348, 2006 [DOI].

8.      Y.F. Gao*, A.F. Bower, K.-S. Kim, L.C. Lev, Y.T. Cheng, "The behavior of an elastic-perfectly plastic sinusoidal surface under contact loading." Wear, 261, 145-154, 2006 [DOI].

2005

2004

7.      Y.F. Gao*, A.F. Bower, "A simple technique for avoiding convergence problems in finite element simulations of crack nucleation and growth on cohesive interfaces." Modelling and Simulation in Materials Science and Engineering 12, 453-463, 2004 [DOI].

·         Codes developed in this paper are available for download [Help File] [Fortran Source File] [Abaqus Input File].

6.      Z. Suo*, Y.F. Gao, G. Scoles, "Nanoscale domain stability in organic monolayers on metals." Trans. of ASME, Journal of Applied Mechanics, 71, 24-31, 2004 [DOI].

2003

5.      Y.F. Gao*, "Passing stiffness anisotropy in multilayers and its effects on nanoscale surface self-organization." International Journal of Solids and Structures 40, 6429-6444, 2003 [Erratum] [DOI].

4.      Y.F. Gao, Z. Suo*, "Guided self-assembly of molecular dipoles on a substrate surface." Journal of Applied Physics 93, 4276-4282, 2003 [DOI].

·         This article also appeared in Virtual Journal of Nanoscale Science & Technology 7, issue 14, 2003.

3.      Y.F. Gao*, Z. Suo, "The orientation of the self-assembled monolayer stripes on a crystalline solid." Journal of the Mechanics and Physics of Solids 51, 147-167, 2003 [DOI].

2002

2.      Y.F. Gao, W. Lu, Z. Suo*, "A mesophase transition in a binary monolayer on a solid surface." Acta Materialia 50, 2297-2308, 2002 [DOI].

1.      Y.F. Gao, Z. Suo*, "Domain dynamics in a ferroelastic epilayer on a paraelastic substrate." Trans. of ASME, Journal of Applied Mechanics 69, 419-424, 2002 [DOI].

_____________________________

Book Chapters

1.      Y.F. Gao, A.F. Bower, "Rough surface plasticity and adhesion across length scales." In: Nanomechanics of Materials and Structures, edited by T.-J. Chuang, P.M. Anderson, M.-K. Wu and S. Hsieh, pp. 277-287, Springer, the Netherlands, 2006.

2.      W. Zhang, Y.F. Gao, T.G. Nieh, "Competing grain boundary and grain interior deformation mechanisms with varying grain sizes." In: C.H. Hsueh et al. (eds) Handbook of Mechanics of Materials, Springer, Singapore, 2018 [DOI].

3.      Y.F. Gao, "High entropy alloys: Solid solution strengthening." In: Encyclopedia of Materials: Metals and Alloys, edited by Michael C. Gao, Elsevier, 2021 [DOI].

Conference Publications

1.      Y.F. Gao*,, "On the manipulation of nanoscale self-assembly by elastic field." Mat. Res. Soc. Symp. Proc. Vol. 794, T9.3, 2004 [PDF].

2.      Y.F. Gao*,, A.F. Bower, K.-S. Kim, "Some issues of rough surface contact plasticity at micro- and nano-scale." Mat. Res. Soc. Symp. Proc. Vol. 841, R.7.3, 2005 [PDF].

3.      Y.F. Gao*, "A micromechanical dislocation model of rough surface contact plasticity." Proceeding of World Tribology Conference, Washington DC, 2005 [PDF].

4.      F.X. Liu*, C.L. Chiang, J.P. Chu, Y.F. Gao, P.K. Liaw, "Effects of glass-forming metallic film on the fatigue behavior of C-2000 Ni-based alloy." Mat. Res. Soc. Symp. Proc. Vol. 903E, 0903-Z14-13.1, 2006 [PDF].

5.      J.H. Lee, C. Zhou, C.J. Su, Y.F.Gao*, G.M. Pharr "Similarity relationships in creep contacts and applications in nanoindentation tests." Mat. Res. Soc. Symp. Proc. Vol. 1224, FF07-08, 2010 [PDF] [Erratum] [DOI].

6.      T.L. Li, J.H. Lee, Y.F. Gao*, "Finite element studies of homogeneous and heterogeneous dislocation nucleation based on the Rice-Peierls framework." Mat. Res. Soc. Symp. Proc. Vol. 1363, RR03-01, 2011 [PDF] [DOI].

7.      Y. Yang, D. Han, Y.F. Gao*, W. Zhang, J.R. Bunn, E.A. Payzant, J. Penso, Z.L. Feng*, "Residual stress modeling and advanced diffraction measurements of 347H steel weldments." Proceedings of the ASME 2022 Pressure Vessels & Piping Conference, PVP2022-85608, 2022.

8.      Y. Wang*, Y. Yang, Y.F. Gao, J. Penso, Z.L. Feng*, "A study of stress relaxation cracking mechanism in a 347H steel pipe-shoe weldment after five-year service." Proceedings of the ASME 2023 Pressure Vessels & Piping Conference, PVP2023-105755, 2023.

Other Publications

1.      P.K. Liaw, W.H. Jiang, G.J. Fan, H. Choo, and Y.F. Gao, (eds.), special issue of Symposium on Bulk Metallic Glasses IV (TMS Annual Spring Meeting, Orlando, FL, 2/26~3/1/2007), Metallurgical and Materials Transactions A, Vol. 39, No. 8, p. 1761, August 2008 [DOI].

2.      P.K. Liaw, W.H. Jiang, H. Choo, and Y.F. Gao, (eds.), special issue of Symposium on Bulk Metallic Glasses V (TMS Annual Spring Meeting, New Orleans, LA, 3/9~3/13/2008), Advanced Engineering Materials, Vol. 10, No. 11, p. 995, November 2008 [DOI].

3.      P.K. Liaw, H. Choo, Y.F. Gao, and G.Y. Wang (eds.), special issue of Symposium on Bulk Metallic Glasses VI (TMS Annual Spring Meeting, San Francisco, CA, 2/15~2/19/2009), Metallurgical and Materials Transactions A, Vol. 41, No. 7, p. 1627, July 2010 [DOI].

4.      Journal of Materials Research, Focus Issue: Self-Assembly and Directed Assembly of Advanced Materials, Vol. 26, No. 2, January 2011 [PDF]. Guest editors (A. Goyal, J. Narayan, and Q. Lin), Principal editors (D.H. Gracias, Yanfei Gao, J.J. Watkins, A. Saiani, and Z. Lin).

5.      P.K. Liaw, G.Y. Wang, H. Choo, and Y.F. Gao (eds.), special issue of Symposium on Bulk Metallic Glasses VII (TMS Annual Spring Meeting, Seattle, WA, 2/14~2/18/2010), Metallurgical and Materials Transactions A, Vol. 42, No. 6, p. 1449, June 2011 [DOI].

6.      P.K. Liaw, G.Y. Wang, H. Choo, and Y.F. Gao (eds.), special issue of Symposium on Bulk Metallic Glasses VIII (TMS Annual Spring Meeting, San Diego, CA, 2/27~3/3/2011), Metallurgical and Materials Transactions A, Vol. 43, No. 8, p. 2591, August 2012 [DOI].

7.      P.K. Liaw, G.Y. Wang, H. Choo, and Y.F. Gao (eds.), special issue of Symposium on Bulk Metallic Glasses IX (TMS Annual Spring Meeting, Orlando, FL, 3/11~3/15/2012), Metallurgical and Materials Transactions A, Vol. 44, No. 5, p. 1979, May 2013 [DOI].

8.      P.K. Liaw, G.Y. Wang, H. Choo, and Y.F. Gao (eds.), special issue of Symposium on Bulk Metallic Glasses X (TMS Annual Spring Meeting, San Antonio, TX, 3/3~3/7/2013), Metallurgical and Materials Transactions A, Vol. 45, No. 5, p. 2351, May 2014 [DOI].

9.      P.K. Liaw, G.Y. Wang, H. Choo, and Y.F. Gao (eds.), special issue of Symposium on Bulk Metallic Glasses XI (TMS Annual Spring Meeting, San Diego, CA, 2/16~2/20/2014), Metallurgical and Materials Transactions A, Vol. 46, No. 6, p. 2380, June 2015 [DOI].

10.      X. Xie, G.Y. Wang, H. Choo, Y.F. Gao, and P.K. Liaw (eds.), special issue of Symposium on Bulk Metallic Glasses XII (TMS Annual Spring Meeting, Orlando, FL, 3/15~3/19/2015), Metallurgical and Materials Transactions A, Vol. 48, No. 4, p. 1544, April 2017 [DOI].

11.      M.C. Gao*, E.W. Huang, Y.F. Gao, R. Maass, H. Choo, Y.F. Shi, S.Y. Lee, X. Xie, G.Y. Wang, L. Jiang, Preface to Innovations in High Entropy Alloys and Bulk Metallic Glasses in Honor of Peter K. Liaw, Metallurgical and Materials Transactions A, Vol. 52, pp. 3671-3673, 2021 [DOI].

 
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