Microstructure and mechanical characteristic of nano-WC composite coating prepared by laser cladding

被引：4
|
作者：
Wei, Zhang [1 ]
Hua, Yao Jian [1 ]
Li, Zhang Qun [1 ]
Zhi, Kong Fan [1 ]
机构：
[1] Zhejiang Univ Technol, Key Lab Mech Mfg & Automat, Minist Educ, Hangzhou, Peoples R China
来源：
HEAT TREATMENT OF MATERIALS | 2006年 / 118卷
关键词：
laser cladding; nano-wc; composite coating; microstructure; property;
D O I：
10.4028/www.scientific.net/SSP.118.579
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The experiments of laser cladding nanometer-size WC powder on 2Cr13 stainless steel have been done using 7kW CO2 laser processing system. The microstructure and mechanical characteristics of the WC composite coating were tested by scanning electronic microscope (SEM), X-ray diffraction (XRD), energy dispersion analyzer of X-ray (EDAX) and microhardness tester. The WC composite coating exhibits compact dendritic and reticular interdendritic structure. The XRD data have revealed the phases of coating include Fe, WC, W2C and Fe3C. The nano-WC composite coating has excellent mechanic performances. The surface hardness of composite coating is about 1758HV(0.2). Its abrasion proof is 3.5 times as high as that of parent metal.
引用
收藏
页码：579 / +
页数：2
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