Tribocorrosion Behavior and Degradation Mechanism of 316L Stainless Steel in Alkaline Solution:Effect of Tribo-Film

作     者：Jingyi Zou Zhongwei Wang Yanlong Ma Liwen Tan Jingyi Zou;Zhongwei Wang;Yanlong Ma;Liwen Tan

作者机构：College of Material Science and EngineeringChongqing University of TechnologyChongqing 400054China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2022年第35卷第8期

页      面：1365-1375页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China under grant No.51801016 the Natural Science Foundation of Chongqing under grant No.cstc2019jcyj-msxmX0134 the Science and Technology Research Program of Chongqing Municipal Education Commission under grant No.KJQN201901132 the University Innovation Research Group of Chongqing under grant No.CXQT20023 the Scientific Research Foundation of Chongqing University of Technology under grant No.2019ZD02 

主　　题：Tribocorrosion 316L stainless steel NaOH Tribo-film Nano-particles 

摘      要：Tribocorrosion behavior and degradation mechanism of 316L stainless steel(SS)in alkaline solution were *** SS was worn in 0.1 mol/L NaOH solution with different potentials to investigate the synergism between wear and *** SS showed larger material loss at a cathodic potential of-0.8 V and lower material loss at anodic potential when compared with that under pure wear *** was inverse when compared with that in other corrosive media,such as H_(2)SO_(4)and NaCl *** formation of Tribo-films with different properties at different potentials played decisive role in the degradation ***-films were formed at cathodic potential(-0.8 V)and anodic potentials(0 and 0.4 V).The tribo-film formed at-0.8 V had the highest O content and was very *** resulted in the easily peeling off of the film and then the acceleration of material *** contrast,the Tribo-films formed at anodic potentials were more complete and the O content was much *** kind of ductile Tribo-films could protect the SS from *** locally high concentration of OH-produced in the reduction reaction of oxygen at-0.8 V could react with the tribo-film which consist of nano-particles(NPs)with high chemical activity and finally led to deep oxidation and embrittlement of the *** passivation of the NPs at the anodic potentials could inhibit the oxidation of tribo-film to maintain its ductility.