Study on interfacial characterization and mechanical properties of plasma-sprayed tungsten coatings

被引：0
|
作者：
Song, Shu-Xiang [1 ]
Zhou, Zhang-Jian [1 ]
Du, Juan [1 ]
Ge, Chang-Chun [1 ]
机构：
[1] Beijing Univ Sci & Technol, Lab Special Ceram & Powder Met, Beijing 100083, Peoples R China
来源：
2006 BIMW: 2006 BEIJING INTERNATIONAL MATERIALS WEEK, PTS 1-4: MAGNESIUM | 2007年 / 546-549卷
基金：
中国国家自然科学基金;
关键词：
plasma spraying; tungsten; interfacial characterization; mechanical property;
D O I：
10.4028/www.scientific.net/MSF.546-549.1809
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Tungsten has the highest melting point among all metal, which makes it withstand thermal shock and erosion in high temperature environments. In this study, Tungsten coatings were sprayed onto the oxygen-free copper substrates by plasma spraying using inert gases protection. XRD, SEM and EDS were used to identify the phases, morphologies and compositions of the coatings. Vickers micro-hardness and bonding strength of the tungsten coatings were also measured. The results revealed that the hardness distribution of the tungsten coatings was different along the thickness direction. The tungsten coating without any interlayer showed higher bonding strength than that of the other two coatings with NiCrAl and W/Cu interlayers, respectively.
引用
收藏
页码：1809 / +
页数：2
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