Effects of WC-Ni content on microstructure and wear resistance of laser cladding Ni-based alloys coating

被引：193

作者：

Guo, Chun ^{[1
,2
]}

Chen, Jianmin ^{[1
]}

Zhou, Jiansong ^{[1
]}

Zhao, Jierong ^{[1
,2
]}

Wang, Lingqian ^{[1
,2
]}

Yu, Youjun ^{[1
,2
]}

Zhou, Huidi ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2012年 / 206卷 / 8-9期

基金：

中国国家自然科学基金;

关键词：

Metal-matrix coating; Sliding; Surface treatment; Wear mechanisms; THERMAL SPRAY COATINGS; NICRBSI COATINGS; CORROSION BEHAVIOR; COMPOSITE COATINGS; TEMPERATURE; PERFORMANCE; OXIDATION; CARBIDES; STEEL;

D O I：

10.1016/j.surfcoat.2011.06.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Different WC-Ni contents of NiCrBSi/WC-Ni composite coatings were produced on stainless steel by laser cladding. The effect of WC-Ni doping on the microstructure and tribological properties of the conventional NiCrBSi coating were systematically investigated. It has been found that the microhardness and wear resistance of the Ni-based alloy coatings are greatly increased after adding the WC-Ni particles, due to the formation of hard WC phase and a partial dissolution of WC particles on the Ni matrix after laser cladding. The laser cladding NiCrBSi/WC-Ni composite coatings, involving only mild abrasive and adhesive wear when sliding against the AISI-52100 counterpart (under ball-on-disk and ring-on-block wear test conditions). Thus, it is concluded that the incorporation of WC phase is an effective and attainable way to improve the tribological properties of conventional Ni-based alloys coatings. (C) 2011 Published by Elsevier B.V.

引用

页码：2064 / 2071

页数：8

共 26 条

[11] High temperature wear resistance of laser cladding NiCrBSi and NiCrBSi/WC-Ni composite coatings [J].