Friction and Wear Mechanism of Unlubricated 304L Austenitic Stainless Steel at Room Temperature  

作　　者：陈国清 

机构地区：[1]School of Materials Science and Engineering,Dalian University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2012年第2期222-226,共5页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Basic Research Program of China(No.2009CB724305);the Program for New Century Excellent Talents in University(No.NCET-10-0278)

摘　　要：To explore wear mechanism of stainless steel used in nuclear pump, the wear properties and the worn surface characteristics of unlubricated 304L austenitic stainless steel on itself were investigated in air at room temperature. The experimental results demonstrated that the wear rate of the material decreased with the increase of the wear time. The friction coefficient fluctuated severely when the applied load was 120 N. At 120 N the wear rate was much higher than that of the applied load of 70 N. At 70 N the wear rate did not show much difference from that of 30 N. The wear mechanism was adhesive and abrasive wear under different load at the initial stage of the wear test. Then, the main wear mechanism changed with the wearing time and the applied load.To explore wear mechanism of stainless steel used in nuclear pump, the wear properties and the worn surface characteristics of unlubricated 304L austenitic stainless steel on itself were investigated in air at room temperature. The experimental results demonstrated that the wear rate of the material decreased with the increase of the wear time. The friction coefficient fluctuated severely when the applied load was 120 N. At 120 N the wear rate was much higher than that of the applied load of 70 N. At 70 N the wear rate did not show much difference from that of 30 N. The wear mechanism was adhesive and abrasive wear under different load at the initial stage of the wear test. Then, the main wear mechanism changed with the wearing time and the applied load.

关 键 词：304L dry sliding friction wear property wear mechanism 

分 类 号：TG142.71[一般工业技术—材料科学与工程] TH117.1[金属学及工艺—金属材料]