期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Effect of p H on the Electrochemical Behaviour and Passive FilmComposition of 316L Stainless Steel 被引量:5
1
作者 Zhu Wang zi-qiang zhou +3 位作者 Lei Zhang Jia-Yuan Hu Zi-Ru Zhang Min-Xu Lu 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2019年第5期585-598,共14页
The effect of pH on the electrochemical behaviour and passive film composition of 316 L stainless steel in alkaline solutions was studied using electrochemical measurements and a surface analysis method. The critical ... The effect of pH on the electrochemical behaviour and passive film composition of 316 L stainless steel in alkaline solutions was studied using electrochemical measurements and a surface analysis method. The critical pH of 12.5 was found for the conversion from pitting corrosion to the oxygen evolution reaction(OER). OER was kinetically faster than pitting corrosion when both reactions could occur, and OER could postpone pitting corrosion. This resulted in pitting being initiated during the reversing scan in the cyclic polarization at the critical pH. According to the X-ray photoelectron spectroscopy analysis, the content of Cr and Mo decreased with pH, while Fe content increased. This induced the degradation of the passive film, which resulted in the higher passive current densities under more alkaline conditions. The selective dissolution of Mo at high p H was found, which demonstrated that the addition of Mo in austenitic stainless steels might not be beneficial to the corrosion resistance of 316L in strong alkaline solutions. 展开更多
关键词 STAINLESS steel pH POLARIZATION XPS PASSIVE FILMS
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部