摘要
本文对１８Ｃｒ２Ｎｉ４ ＷＡ钢在１－２％ 碳势、９２０＋ １０ ℃下渗碳６ｈ 的渗碳层进行不同程度的冷处理，改变渗层的奥氏体量，在不同的磨损试验机上进行磨损试验，采用扫描电子显微镜对摩擦表面形貌进行分析，研究了组织与相应磨损条件下的磨损机理。原始奥氏体量较多的试件在摩擦过程中，因产生摩擦诱发马氏体相变使磨痕形态和磨损机制发生很大的变化，从而表现出不同的耐磨性。
Cr2Ni4WA steel was carburized at 920+10℃ under a carbon potential of 1 2% for 6h,then subzero treated at different temperatures to obtain different contents of retained austenite in the case.Wear tests of the specimens tested on different types of wear testing machines and morphology of the wear tracks examined under SEM to investigate the relationship between the wear mechanism and the corresponding structure.The results show that for the specimens with more retained austenite,the morphology of the wear track and the wear mechanism vary significantly due to the formation of martensite induced by friction,which result in different wear resistance.
出处
《金属热处理》
CAS
CSCD
北大核心
1999年第12期10-12,共3页
Heat Treatment of Metals
基金
国家自然科学基金
关键词
摩擦
磨损
钢
渗碳层
friction,wear,wear mechanism,microstructure
