摘要
为了获得质优价廉的耐磨材料,作者采用铸渗法制造WC增强金属基表面复合材料,研究了WC颗粒含量(质量分数)对渗层在干摩擦磨损条件下的摩擦磨损性能的影响。结果表明:当WC颗粒含量为45%时,摩擦系数与耐磨性最好;用SEM观察磨痕形貌,发现试样的磨痕最为平整、光滑,且塑性变形较轻;磨损机制主要以剥层、撕裂和塑性变形为主;表明添加适量的增强颗粒能有效地降低摩擦副之间的犁沟和粘着效应。
In order to acquire the wear resisting material, the metallic matrix surface was reinforced with WC particle by casting-penetrating process. The influence of WC content on the frictional wear behavior and mechanism in the dry friction was studied. The results show that when the WC content is 45%, the frictional coefficient and the wear resistance are best, and the grinding crack is smooth and has less galling. The wear mechanisms are mainly splitting layer, tearing and plastic deformation. This show that adding some reinforcing grains in the metal surface can reduce the furrow and adherence effect of the frictional pair.
出处
《热加工工艺》
CSCD
北大核心
2008年第21期37-39,共3页
Hot Working Technology
基金
徐州市重点科技资助项目(2007-52)
关键词
WC颗粒
摩擦系数
耐磨性
磨损机理
WC particles
frictional coefficient
wear resistance
wear mechanism
