摘要
用表面机械研磨对低碳钢板材进行 面处理、经 Ｘ射线衍射及透射电镜分忻表明，处理后的样品上已形成了纳米结构表层．用往复式摩擦实验机研究了处理后样品的摩擦磨损性能．结果表明其磨擦系数较未处理样品明显降低，其磨损量在低载荷及中等载荷作用下也较未处理样品降低．磨痕形貌的扫描电镜观察表明、表面纳米化能减弱低碳钢的疲劳磨损效应，提高材料的摩擦磨损性能．
A low carbon steel plate was treated by surface mechanical attrition (SMA) and its surface layer structure was analyzed by using XRD and TEM. The results reveal that the surface layer has transformed into nanocrystalline structure. Its friction and wear behaviors have been studied compared with the untreated sample on a reciprocating friction tester. The results show that the friction coefficient of the treated specimen is markedly decreased, and its wear volume loss is reduced under the low loads and middle loads. The SEM observation of the wear scars shows that the nanocrystalline layer may reduce the effect of fatigue wear. So the friction and wear properties of the low carbon steel can be improved by means of surface nanocrystallization.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第12期1251-1255,共5页
Acta Metallurgica Sinica
基金
中国科学院知识创新基金
国家自然科学基金资助项目50071061
关键词
低碳钢
表面机械研磨
表面纳米化
摩擦
磨损
low carbon steel, surface mechanical attrition, surface nanocrystallization, friction and wear
