Orientation dependence of mechanically induced grain boundary migration in nano-grained copper

J.X.Hou ¹X.Y.Li ²K.Lu²

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作者信息

1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
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Abstract

Tensile tests were carried out on gradient nanograined copper samples to investigate the grain orientation dependence of mechanically induced grain boundary migration (GBM) process.The relationship between GBM and the orientations of nanograins relative to loading direction was established by using electron backscatter diffraction.GBM is found to be more pronounced in the grains with higher Schmid factors where dislocations are easier to slip.As a result,the fraction of high angle grain boundaries decreases and that of low angle grain boundaries increases after GBM.

Key words

Grain boundary migration/Orientation dependence/Texture/Nano-grain/Copper

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基金项目

This work is financially supported by the Chinese Ministry of Science and Technology(2017YFA0204401)

This work is financially supported by the Chinese Ministry of Science and Technology(2017YFA0700700)

Chinese Academy of Sciences(zdyz201701)

出版年

2021

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量32

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