Microstructure and properties of coatings with rare earth formed by DC-plasma jet surface metallurgy

被引：15
|
作者：
Chen, H [1 ]
Li, HQ
Sun, YZ
Li, M
机构：
[1] Shanghai Univ Sci & Technol, Sch Mat Sci, Qingdao 266510, Peoples R China
[2] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2006年 / 200卷 / 16-17期
关键词：
rare earth; microstructure; wear resistance; DC-plasma jet surface metallurgy;
D O I：
10.1016/j.surfcoat.2005.04.061
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new method of surface modification, DC-plasma jet surface metallurgy, is proposed in order to improve wear resistance of materials. This paper reports on all experiment, in which some metallurgical coatings of iron-based alloy with different contents of La2O3 and CeO2 were prepared oil AIS11020 steel using a homemade DC-plasma jet surface metallurgy equipment. A scanning electron microscope (SEM), energy dispersive X-ray (EDX) microanalysis and X-ray diffraction analysis (XRD) were employed to observe the microstructure and analyzed the chemical compositions of coatings. The effect of RE oxide (La2O3 and CeO2) on microstructure and properties of coatings was investigated. The result shows that addition of a proper amount of RE oxide (La2O3 and CeCO2) can refine and purify the microstructure, significantly increase microhardness and enhance the wear resistance. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：4741 / 4745
页数：5
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