W-Cu/Cu composite electrodes fabricated via laser surface alloying

被引：22
|
作者：
Xie, Hongbin [1 ,2 ]
Guan, Weimian [1 ,2 ]
Lv, Hao [1 ,2 ]
Yang, Huiya [1 ,2 ]
Gao, Mingyu [1 ,2 ]
Fang, Youtong [2 ]
Liu, Jiabin [1 ,2 ]
Wang, Hongtao [2 ]
机构：
[1] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Ctr X Mech, Fac Engn, Hangzhou 310027, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2022年 / 185卷
基金：
中国国家自然科学基金;
关键词：
W-Cu composite; Microstructure; Laser surface alloying; Arc ablation; CU COMPOSITES; MICROSTRUCTURE EVOLUTION; POWDERS; DENSIFICATION; RESISTANCE; MICRO; FE;
D O I：
10.1016/j.matchar.2021.111715
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It is a long-term requirement to reduce the arc ablation rate and the W content of W-Cu composites. In this work, laser surface alloying was employed to prepare a novel W-Cu/Cu composite that contained a high W content on the surface but a low W content for the whole composite. The new W-Cu electrode exhibited a lower arc ablation rate than the commercial one. The underlying mechanism was attributed to the higher thermal conductivity of the new W-Cu/Cu composite with the low W consumption as a whole. This study opens a door to overcome the trade-off of the ablation resistance and W consumption of the W-Cu electrodes.
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收藏
页数：8
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