Effect of friction on corrosion behaviors of AISI 304 and Cr26Mo1 stainless steels in different solutions  

作　　者：Z.X.Dai S.L.Jiang L.K.Ning X.D.Xu S.Li D.L.Duan 

机构地区：[1]Shi-Changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang,110016,Liaoning,China [2]School of Materials Science and Engineering,University of Science and Technology of China,Hefei,230026,Anhui,China [3]Liaoning Key Laboratory of Aero-engine Materials Tribology,Institute of Metal Research,Chinese Academy of Sciences,Shenyang,110016,Liaoning,China [4]AnSteel LISCO Stainless Steel Co.,Ltd.,Guangzhou,510760,Guangdong,China

出　　处：《Journal of Iron and Steel Research International》2023年第12期2541-2556,共16页

基　　金：supported by PetroChina Key Core Technology Project(21ZG10);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDC04040400).

摘　　要：The corrosion and tribocorrosion behaviors of AISI 304 austenitic stainless steel and Cr26Mo1 ultrapure high chromium ferrite stainless steel in 3.5 wt.%NaCl and 0.5 mol/L H2SO4 solutions were investigated.Microelectrode electrochemical measurement technology was applied to identify electrochemistry behaviors during tribocorrosion tests in situ.The surface morphologies and compositions of the wear tracks were analyzed by scanning electron microscopy and Raman spectrum.The results showed that compositions of stainless steels,corrosive mediums and applied loads have great influence on tribocorrosion behaviors of stainless steels.Firstly,the corrosion resistance in static state of stainless steels primarily dominates its tribocorrosion behavior;meanwhile,better mechanical properties are in favor of tribocorrosion resistance.Secondly,the corrosion rate is promoted significantly in 3.5%NaCl solution by friction,while the tendency is inconspicuous in 0.5 mol/L H2SO4 solution.Last but not least,passive films on stainless steels can be wiped off by small friction force.With the increase in applied load,the effect of friction converts to forming friction oxide film from removing passivation film,so that a critical load exists below which the friction force can promote the corrosion process extremely.

关 键 词：TRIBOCORROSION Stainless steel/PEEK friction pair Corrosive medium Applied load Microelectrode probe 

分 类 号：TG142[一般工业技术—材料科学与工程]