首页|Pitting corrosion initiated by SiO2-MnO-Cr2O3-Al2O3-based inclusions in a 304 stainless steel
Pitting corrosion initiated by SiO2-MnO-Cr2O3-Al2O3-based inclusions in a 304 stainless steel
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
万方数据
The number,area,and composition of non-metallic inclusions were modified by the addition of aluminum in the steel,which was responsible for the variation of the corrosion degree of the 304 stainless steel.Inclusions detection,corrosion test,electrochemical test,thermodynamic calculation,and first-principles calculation were performed to evaluate the pitting corrosion of the stainless steel.The initiation of the pitting corrosion by three types of inclusions,including(Mn,Si,Cr,S)O,(Mn,Al,Cr)O,and Al2O3 were in-situ observed.After corroding for 880 min,the corrosion index of(Mn,Si,Cr,S)O,(Mn,Al,Cr)O,and Al2O3 was 0.38%,0.02%,and 0.00%min-1,respectively.With the increase in aluminum content in the steel,the pitting potential of the stainless steel was 0.131,0.304,and 0.338 V,respectively,indicating that a higher aluminum content in the steel was beneficial to improving the pitting corrosion resistance of the 304 stainless steel.
School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing(USTB),Beijing 100083,China
School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China
Stainless Steel R&D Center of Central R&D Institute,Baoshan Iron and Steel Co.,Ltd.,Shanghai 201900,China
School of Mechanical and Materials Engineering,North China University of Technology,Beijing 100144,China
展开 >
National Natural Science Foundation of ChinaHigh Steel Center(HSC)at North China University of Technology,Yanshan UniversityUniversity of Science and Technology Beijing,China
万方数据
