Effects of layer thickness and strain rate on mechanical properties of copper-gold multilayer nanowires

Fan Qian; Xu Jian-Gang; Song Hai-Yang; Zhang Yun-Guang

doi:10.7498/aps.64.016201

Abstract

Effects of individual layer thickness and strain rate on the mechanical behavior of copper-gold multilayer nanowires as well as the dislocation nucleation mechanism under a uniform tensile loading are investigated using molecular dynamics method. Simulations indicate that the highest yield strength increases with the increase of the individual layer thickness. Furthermore, the result also shows that the mechanical properties in the tensile process at different strain rates are dramatically different from each other, where the dislocation motion and twinning deformation are at a lower strain rate, while the individual atoms are at a higher strain rate for leading to amorphization. The general conclusions derived from this work can provide a guideline for the design of high performance multilayer composite materials.

Keywords:

Authors and contacts

1.
School of Science, Xi'an University of Posts and Telecommunications, Xi'an 710121, China;
2.
College of Materials Science and Engineering, Xi'an Shiyou University, Xi'an 710065, China
Funds: Project supported by the National Natural Science Foundation of China (Grant No. 10902083), the Program for New Century Excellent Talents in University, China (Grant No. NCET-12-1046), the New Scientific and Technological Star of Shaanxi Province, China (Grant No. 2012KJXX-39), and the Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2014JQ1036).

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[8]	An M R, Song H Y 2013 Sci. China Phys. Mech. Astron. 56 1938
[9]	Song H Y, Li Y L 2012 Phys. Lett. A 376 529
[10]	Song H Y, Li Y L, An M R 2014 Comput. Mater. Sci. 84 40
[11]	Song H Y, Li Y L 2012 J. Appl. Phys. 111 044322
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[39]	Faken D, Jonsson H 1994 Comput. Mater. Sci. 2 279
[40]	Stukowski A 2010 Modelling Simul. Mater. Sci. Eng. 18 015012
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[42]	Diao J, Gall K, Dunn M L, Zimmerman J A 2006 Acta. Mater. 54 643
[43]	Ma F, Ma S L, Xu K W, Chu P K 2007 Nanotechnology 18 455702

Cited By

[1]	Xu S, Guo Y F 2013 Acta Phys. Sin. 62 196201 (in Chinese) [徐爽, 郭雅芳 2013 物理学报 62 196201]
[2]	Zhang J H, Li M, Gu F, Liu Q Q 2012 Chin. Phys. B 21 016203
[3]	Gu F, Zhang J H, Xu L H, Liu Q Q, Li M 2011 Chin. Phys. Lett. 28 106102
[4]	Imran M, Hussain F, Rashid M, Ahmad S A 2012 Chin. Phys. B 21 126802
[5]	Li C, Xu J, Li W, Jiang X F, Sun S H, Xu L, Chen K J 2013 Chin. Phys. B 22 107201
[6]	Wang Z G, Huang R, Wen Y H 2012 Acta Phys. Sin. 61 166102 (in Chinese) [汪志刚, 黄娆, 文玉华 2012 物理学报 61 166102]
[7]	Song H Y, Li Y L 2012 J. Appl. Phys. 112 054322
[8]	An M R, Song H Y 2013 Sci. China Phys. Mech. Astron. 56 1938
[9]	Song H Y, Li Y L 2012 Phys. Lett. A 376 529
[10]	Song H Y, Li Y L, An M R 2014 Comput. Mater. Sci. 84 40
[11]	Song H Y, Li Y L 2012 J. Appl. Phys. 111 044322
[12]	Whang C, Song H Y, An M R 2014 Acta Phys. Sin. 63 046201 (in Chinese) [王琛, 宋海洋, 安敏荣 2014 物理学报 63 046201]
[13]	Liu Y, Bufford D, Wang H, Sun C, Zhang X 2011 Acta. Mater. 59 1924
[14]	Zhu X F, Zhang G P, Yan C, Zhu S J, Sun J 2010 varPhilos. Mag. Lett. 90 413
[15]	Abdolrahim N, Zbib H M, Bahr D F 2014 Int. J. PLASTICITY 52 33
[16]	Abdolrahim N, Mastorakos I N, Shao S, Bahr D F, Zbib H M 2014 Comput. Mater. Sci 86 118
[17]	Zhang R F, Germann T C, Wang J, Liu X Y, Beyerlein I J 2013 Scripta Mater 68 114
[18]	Shao S, Zbib H M, Mastorakos I N, Bahr D F 2014 Comput. Mater. Sci 82 435
[19]	Mastorakos I N, Abdolrahim N, Zbib H M 2010 Int. J. Mech. Sci 52 295
[20]	Yuan F P, Wu X L 2012 J.Appl.Phys. 111 124313
[21]	Verdier M, Huang H, Spaepen F, Embury J D, Kung H 2006 Philos. Mag. 86 5009
[22]	Sangid M D, Ezaz T, Sehitoglu H, Robertson I M 2011 Acta. Mater. 59 283
[23]	Zbib H M, Overman C T, Akasheh F, Bahr D 2011 Int. J. PLASTICITY 27 1618
[24]	Abdolrahim N, Mastorakos I N, Zbib H M 2010 Phys. Rev. B 81 054117
[25]	Wang J, Misra A 2014 Curr. Opin. Solid. St. M. 18 19
[26]	Kramer D E, Foecke T 2002 Philos. Mag. A 82 3375
[27]	Yan J W, Zhang G P, Zhu X F, Liu H S, Yan C 2013 Philos. Mag 93 434
[28]	Schweitz K O, Chevallier J, Bottiger J 2001 Philos. Mag. A 81 2021
[29]	Beyerlein I J, Wang J, Zhang R F 2013 Acta. Mater. 61 7488
[30]	Wang T, Lu Z X, Yang Z Y 2011 Chin. J. Comput. Mech. 28 147 (in Chinese) [王涛, 卢子兴, 杨振宇 2011 计算力学学报 28 147]
[31]	Chen S D, Zhou Y K, Soh A K 2012 Comput. Mater. Sci 61 239
[32]	Lin S J, Wu C D, Fang T H, Kuo L M 2012 Comput. Mater. Sci 59 114
[33]	Li Y P, Zhu X F, Tan J, Wu B, Zhang G P 2009 Philos. Mag. Lett. 89 66
[34]	Li Y P, Zhu X F, Zhang G P, Tan J, Wang W, Wu B 2010 Philos. Mag. 90 3049
[35]	Crone J C, Kbap J, Chung P W, Rice B M 2011 Appl. Phys. Lett. 98 141910
[36]	Hockney R W 1970 Methods Comput. Phys. 9 136
[37]	Zhou X W, Wadley H N G, Johnson R A, Larson D J, Tabat N, Cerezo A, Long A K P, Smith G D W, Clifton P H, Martens R L, Kelly T F 2001 Acta. Mater. 49 4005
[38]	Wadley H N G, Zhou X, Johnson R A, Neurock M 2001 Prog. Mater. Sci. 46 329
[39]	Faken D, Jonsson H 1994 Comput. Mater. Sci. 2 279
[40]	Stukowski A 2010 Modelling Simul. Mater. Sci. Eng. 18 015012
[41]	Cheung K S Yip S 1991 J. Appl. Phys. 70 5688
[42]	Diao J, Gall K, Dunn M L, Zimmerman J A 2006 Acta. Mater. 54 643
[43]	Ma F, Ma S L, Xu K W, Chu P K 2007 Nanotechnology 18 455702

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Vol. 64, Issue 1 - 2015-01-05

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