摘要: Twinning can become an important deformation mechanism in fcc metals once the crystal size is reduced to sub-micron scale, e.g., nanocrystals or nanowhiskers. The study of twinning process, interactions between propagating twins and dislocations therefore for a better understanding mechanical properties metallic nanostructures. Here we show results atomistic simulations defect-free nanowhiskers under tensile load using different EAM potentials Au. mechanisms twin propagation twin-stacking fault interaction are described modification criterion by Chen et al. [M. al., Science 300, 1275, 2003] predicting its dependence presented.
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sci-hub.se 参考文章(18)
Qian Yu, Zhi-Wei Shan, Ju Li, Xiaoxu Huang, Lin Xiao, Jun Sun, Evan Ma, Strong crystal size effect on deformation twinning Nature. ,vol. 463, pp. 335- 338 ,(2010) , 10.1038/NATURE08692
Jong-Hyun Seo, Youngdong Yoo, Na-Young Park, Sang-Won Yoon, Hyoban Lee, Sol Han, Seok-Woo Lee, Tae-Yeon Seong, Seung-Cheol Lee, Kon-Bae Lee, Pil-Ryung Cha, Harold S Park, Bongsoo Kim, Jae-Pyoung Ahn, None, Superplastic Deformation of Defect-Free Au Nanowires via Coherent Twin Propagation Nano Letters. ,vol. 11, pp. 3499- 3502 ,(2011) , 10.1021/NL2022306
Z.H. Jin, S.T. Dunham, H. Gleiter, H. Hahn, P. Gumbsch, A universal scaling of planar fault energy barriers in face-centered cubic metals Scripta Materialia. ,vol. 64, pp. 605- 608 ,(2011) , 10.1016/J.SCRIPTAMAT.2010.11.033
Harold S. Park, Ken Gall, Jonathan A. Zimmerman, Deformation of FCC nanowires by twinning and slip Journal of The Mechanics and Physics of Solids. ,vol. 54, pp. 1862- 1881 ,(2006) , 10.1016/J.JMPS.2006.03.006
Daniel Y. Joh, Lihong H. Herman, Sang-Yong Ju, Jesse Kinder, Michael A. Segal, Jeffreys N. Johnson, Garnet K. L. Chan, Jiwoong Park, On-chip Rayleigh imaging and spectroscopy of carbon nanotubes. Nano Letters. ,vol. 11, pp. 1- 7 ,(2011) , 10.1021/NL1012568
E.B. Tadmor, S. Hai, A Peierls criterion for the onset of deformation twinning at a crack tip Journal of The Mechanics and Physics of Solids. ,vol. 51, pp. 765- 793 ,(2003) , 10.1016/S0022-5096(03)00005-X
Mingwei Chen, En Ma, Kevin J Hemker, Hongwei Sheng, Yinmin Wang, Xuemei Cheng, None, Deformation Twinning in Nanocrystalline Aluminum Science. ,vol. 300, pp. 1275- 1277 ,(2003) , 10.1126/SCIENCE.1083727
William G. Hoover, Canonical dynamics: Equilibrium phase-space distributions Physical Review A. ,vol. 31, pp. 1695- 1697 ,(1985) , 10.1103/PHYSREVA.31.1695
Y.T. Zhu, X.L. Wu, X.Z. Liao, J. Narayan, L.J. Kecskés, S.N. Mathaudhu, Dislocation–twin interactions in nanocrystalline fcc metals Acta Materialia. ,vol. 59, pp. 812- 821 ,(2011) , 10.1016/J.ACTAMAT.2010.10.028
G. J. Ackland, G. Tichy, V. Vitek, M. W. Finnis, Simple N-body potentials for the noble metals and nickel Philosophical Magazine. ,vol. 56, pp. 735- 756 ,(1987) , 10.1080/01418618708204485