On the fracture process of intermediate temperature embrittlement of pure copper in electrical-assisted tension

被引：5

作者：

He, Jing ^{[1
]}

Zheng, Zhilin ^{[1
]}

Xiang, Ziting ^{[1
]}

Li, Huabing ^{[1
]}

Sun, Qingqing ^{[1
]}

Wang, Shuai ^{[1
]}

机构：

[1] Southern Univ Sci & Technol, Dept Mech & Energy Engn, 1088 Xueyuan Blvd, Shenzhen 518055, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2021年 / 826卷

基金：

中国国家自然科学基金;

关键词：

Intermediate temperature embrittlement; Copper; Electrical-assisted manufacturing; Cavity; Secondary crack; DYNAMIC EMBRITTLEMENT; HIGH-PURITY; SULFUR; CU; SOLUBILITY; TRANSITION; DUCTILITY; METALS;

D O I：

10.1016/j.msea.2021.141979

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper investigated the intermediate temperature embrittlement phenomenon in the electrical-assisted tensile test of copper. Both the reduction of area and elongation decreased significantly in electrical-assisted tension. Many cavities were found on the surface of fractured sample, and most of the cavities are located near the grain boundary and a few of them are in the grain interior. Based on experimental and computational results, it is concluded that the fracture behavior is mainly ruled by the aggregation and coalescence of cavities that is possibly induced by trace concentration of sulfur solutes.

引用

页数：9

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