Fabrication and characterization of W-Cu composite coatings with different W contents by cold spraying

被引：23
作者：
Deng, Nan [1 ,2 ]
Tang, Junrong [3 ,4 ]
Xiong, Tianying [3 ]
Li, Jianqiang [2 ]
Zhou, Zhangjian [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
[4] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2019年 / 368卷
基金：
中国国家自然科学基金;
关键词：
W-Cu composites; Cold spray; Deposition efficiency; Wear behavior; WEAR-RESISTANCE; MECHANISM; NANOCOMPOSITE; PARTICLES;
D O I：
10.1016/j.surfcoat.2019.04.034
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
W-Cu composite coatings with different tungsten (W) contents were fabricated by cold spraying. The morphology and microstructure were studied using scanning electron microscopy (SEM), with W content and porosity of the final coatings being measured by an Image analysis software program equipped with SEM. Results showed that a dense coating with very low porosity, and free of impurity phase can be obtained by cold spraying. The porosity and thickness of the coatings decreased with the increasing of W content in the starting blend powders. The deposition efficiency of W was improved with the addition of soft particles. The wear behavior and possible bonding mechanisms of W-Cu composite coatings were also investigated.
引用
收藏
页码：8 / 14
页数：7
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