Scratch testing of WC/Co hardmetals

被引：37
|
作者：
Zunega, J. C. P. [1 ]
Gee, M. G.
Wood, R. J. K. [1 ]
Walker, J. [1 ]
机构：
[1] Univ Southampton, Natl Ctr Adv Tribol Southampton nCATS, Southampton SO9 5NH, Hants, England
来源：
TRIBOLOGY INTERNATIONAL | 2012年 / 54卷
基金：
英国工程与自然科学研究理事会;
关键词：
WC/Co hardmetals; Tribo-layer; Wear; Coefficient of friction; WC-CO HARDMETALS; SLIDING CONTACT; HARD METALS; ABRASION; MECHANISMS; WEAR;
D O I：
10.1016/j.triboint.2012.02.027
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Two grades of WC/Co hardmetals, a fine-grained sample and coarse-grained sample, were tested using single and multiple scratch tests with a spherical diamond stylus. The variation in damage mechanism with increasing number of scratch repeats was analysed using SEM, FIB and 3D confocal microscopy. An interesting feature is the formation of a thin tribo-layer on the surface of the scratched region, which becomes more evident at increased scratch repeats. Variations in the coefficient of friction were attributed to changes in the topography of the stylus and formation of a tribo-layer on the scratched surface. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：77 / 86
页数：10
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