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Orientation dependence of deformation twinning in Cu single crystals

Cai S S ¹ Li X W ² Tao N R ¹ ^*

文摘	Cu single crystals were subjected to dynamic compression plastic deformation to investigate orientationdependent twinning. The experimental results showed that twinning is closely related to the ratio of the maximum Schmid factor for twinning partial (mT ) to the maximum Schmid factor for perfect dislocation (mS ), i.e.,m_T/m_S , rather thanmT . The twin volume fraction V_T increases with them T/m_S value and the most favorable orientation for twinning has the maximum m_T/m_S value (1.15). The relationships ofmT/mS with both effective stacking fault energy γ_(eff) and threshold stress for twinning τ_T were established for understanding orientation-dependent twinning. Further insights into the orientation-dependent twinning and guidance for developing bulk high density nanotwinned materials are provided.
来源	Journal of Materials Science & Technology ,2018,34(8):1364-1370 【核心库】
DOI	10.1016/j.jmst.2017.10.004
关键词	Orientation Twinning ; Cu ; Single crystal
地址	1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang National Laboratory for Materials Science, Shenyang, 110016 2. Northeastern University,Department of Materials Physics and Chemistry, School of Materials Science and Engineering, Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Shenyang, 110819
语种	英文
文献类型	研究性论文
ISSN	1005-0302
学科	金属学与金属工艺
基金	Financial supports from the National Natural Science Foundation of China ; the Ministry of Science and Technology of People's Republic of China
文献收藏号	CSCD:6308750

参考文献共 39 共2页

引证文献 2 篇

1 Sun Fulong Electrodeposition and growth mechanism of preferentially orientated nanotwinned Cu on silicon wafer substrate Journal of Materials Science & Technology,2018,34(10):1885-1890
CSCD被引 2 次

2 Ma Qiuchen Dislocation behavior in Cu single crystal joints under the ultrasonically excited high-strain-rate deformation Journal of Materials Science & Technology,2023,141:66-77
CSCD被引 1 次

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