Tungsten coating prepared on V-4Cr-4Ti alloy substrate by electrodeposition from molten salt in air atmosphere

被引：8
作者：
Jiang, Fan [1 ]
Zhang, Yingchun [1 ]
Li, Xuliang [1 ]
Sun, Ningbo [1 ]
Wang, Lili [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 10083, Peoples R China
来源：
FUSION ENGINEERING AND DESIGN | 2014年 / 89卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Tungsten coating; Electrodeposition; Thickness; V-4Cr-4Ti; BEHAVIOR; MELT;
D O I：
10.1016/j.fusengdes.2013.12.012
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Tungsten coatings were prepared by electrodeposition on vanadium alloy (V-4Cr-4Ti) substrate from Na2WO4-WO3 molten salt at 1173 K in atmosphere. The crystal structure. microstructure. microhardness, oxygen content of the coating as well as bond strength between coatings and substrates were investigated. Pure and compact tungsten coatings were successfully obtained with columnar structure. The tungsten coatings thickness is 505 mu m and the oxygen weight ratio is 0.025 wt.%, when the electrodeposited time is 80 h. The tungsten coatings adhesive strength determined by tensile test exceeds 39.28 MPa. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：83 / 87
页数：5
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