Influence of coating microstructure on the abrasive wear resistance of WC/Co cermet coatings

被引：148

作者：

Liao, H ^{[1
]}

Normand, B ^{[1
]}

Coddet, C ^{[1
]}

机构：

[1] IPSe, Lab Etud & Rech mat & Proprietes Surfaces, F-90010 Belfort, France

来源：

SURFACE & COATINGS TECHNOLOGY | 2000年 / 124卷 / 2-3期

关键词：

abrasion; cermet; thermal spraying; tungsten carbide; wear;

D O I：

10.1016/S0257-8972(99)00653-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thermally sprayed WC/Co cermet coatings are widely used for their resistance to abrasive wear. In this work the influence of the abrasive grain size on the abrasive wear resistance was investigated for WC/Co coatings sprayed with several processes: APS, high-velocity oxy-fuel(HVOF) and VPS. Results show that the larger the abrasive particle size, the lower the abrasion resistance of the coatings. Moreover, among the thermal spray techniques tested, HVOF coatings have the best wear resistance while VPS coatings present the lowest resistance. The role of the coating microstructure and residual stresses on the wear track and morphologies, as well as the abrasive wear behaviour, are discussed. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：235 / 242

页数：8

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