文献类型：期刊文献

英文题名：Evolution of friction-induced microstructure of SUS 304 meta-stable austenitic stainless steel and its influence on wear behavior

作者：Wei, Xicheng[1];Hua, Meng[2];Xue, Zongyu[1];Gao, Zhi[3];Li, Jian[4]

机构：[1]Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China;[2]City Univ Hong Kong, Dept MEEM, Kowloon Tong, Hong Kong, Peoples R China;[3]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[4]Wuhan Res Inst Mat Protect, Wuhan 430030, Peoples R China

年份：2009

卷号：267

期号：9-10

起止页码：1386

外文期刊名：WEAR

收录：;EI(收录号：20093412263553);WOS:【SCI-EXPANDED(收录号:WOS:000274584500005)】；

基金：This study was supported by the National Natural Science Foundation of China ( 50675128) and a Strategy Research Grant ( CityU: 7001776) from City University of Hong Kong, Hong Kong Special Administrative Region, China.

语种：英文

外文关键词：Martensitic transformation; SUS 304; Austenite; Friction and wear

摘要：The microstructure evolution of the worn surface and sub-surface layer of SUS 304 austenitic stainless steel (ASS) disc against Al2O3 ceramic ball were studied on the basis of the tribological behaviors in the tests performed using a Cameron-Plint TE67 pin-on-disc tester. The microstructure after friction test was observed by optical and scanning electron microscope. The possible phase transformation of meta-stable austenite to martensite was detected by X-ray diffractometer. Results showed that friction-induced deformation led to finer grain at the subsurface beneath the worn surface. Furthermore, white layer was observed on some worn surface layers after higher normal loads. Transformed martensite from the austenite appeared on the worn surface under both low and high normal-loading conditions. Absence of transformed martensite was detected at the site about 25 mu m below the worn surface although the grains at the site were still intensive and fine. In addition, the specific wear rate of SUS 304 stainless steel specimens was measured, and the possible reasons affecting the wear behavior were analyzed and discussed. (C) 2009 Elsevier B. V. All rights reserved.