文献类型： 外文期刊

作者： Chen, Youming ¹ ; Tang, Youyun ² ; Zhang, Hao ¹ ; Fu, Licai ³ ;

作者机构： 1.Hunan Univ Sci & Technol, Minist Educ, Engn Res Ctr Adv Min Equipment, Xiangtan 411201, Peoples R China

2.Hunan Acad Agr Sci, Soil & Fertilizer Inst, Changsha, Hunan, Peoples R China

3.Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China

关键词： Martensite steel;Nanocrystalline;Diffusion;Oxidation;Wear behavior

期刊名称：TRIBOLOGY LETTERS （ 影响因子：3.106； 五年影响因子：3.02 ）

ISSN： 1023-8883

年卷期： 2016 年 61 卷 1 期

页码：

收录情况： SCI

摘要： The friction and wear behavior of surface nanocrystalline martensite steel has been investigated. The wear rate of nanocrystalline martensite ranges from 2 x 10(-5) to 4.5 x 10(-5) mm(3)/m at an applied load of 2-15 N. It is one order of magnitude lower than its ultrafine grain counterpart. The surface hardness of both nanocrystalline and ultrafine martensite steels is about 7.0 GPa. It is unexpected according to Archard's equation that the wear rate has an inversely linear relationship to hardness. The investigations indicate that the diffusion rate of Cr towards a worn surface dramatically increases as the average grain size of martensite steel decreases to 30 nm. This leads to the formation of Fe2O3, CrO3 and FeCr2O4 films on the worn surface and an improvement in the wear resistance of martensite steel.