Twinnability Predication for fcc Metals

材料科学技术（英文）, 2011, 27(2): 97-100.

^1, , ^2, , ^3,

1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

2.Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124,China

3.Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA

基金项目: S.X.Mao would like to acknowledge NSF(CMMI 0928517) as well as Chinese MOST(2009CB623702) the support from the "Hundred Talents Project" of CAS,the Cheung Kong Scholars Program,and the National Natural Science Foundation of China(10776032)

Twinnability Predication for fcc Metals

B.Q.Li ^1, , M.L.Sui ^2, , S.X.Mao ^3,

1.Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

2.Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124,China

3.Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA

Keywords： Deformation twinning

Inherent twinnability of face-centered-cubic (fcc) metals was analyzed based on the direct competition between twinning partial dislocation nucleation and trailing partial dislocation nucleation, with which the twinnability of fcc metals can be simply expressed as function of the stacking-fault energy, the unstable stacking-fault energy, and the unstable twinningfault energy of fee metals.The predicted twinnability ranking matched well with former experimental results and provided a physical insight to understand twinnability from crystaliographic orientation and fault energy parameters.

参考文献

[1]	J. Y. HUANG;Y. K. WU;H. Q. YE .DEFORMATION STRUCTURES IN BALL MILLED COPPER[J].Acta materialia,1996(1):1211-1221.
[2]	X. Z. Liao;F. Zhou;E. J. Lavernia;D. W. He;Y. T. Zhu .Deformation twins in nanocrystalline Al[J].Applied physics letters,2003(24):5062-5064.
[3]	E.B. Tadmor;N. Bernstein .A first-principles measure for the twinnability of FCC metals[J].Journal of the Mechanics and Physics of Solids,2004(11):2507-2519.
[4]	Y. T. Zhu;X. Z. Liao;S. G. Srinivasan;Y. H. Zhao;M. I. Baskes;F. Zhou;E. J. Lavernia .Nucleation and growth of deformation twins in nanocrystalline aluminum[J].Applied physics letters,2004(21):5049-5051.
[5]	D.H.WARNER;W.A.CURTIN;S.QU .Rate dependence of crack-tip processes predicts twinning trends in f.c.c.metals[J].Nature materials,2007(11):876-881.

上一张下一张

上一张下一张

计量

下载量()
访问量()

作者相关

在本站搜索
在百度学术搜索
在万方数据库搜索
在CNKI搜索

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%