北京科技大学学报2011，Vol.33Issue(10)：1226-1230,5.
超级13Cr不锈钢的钝化膜耐蚀性与半导体特性
Corrosion resistance and semiconductor properties of passive films formed on super 13Cr stainless steel
蔡文婷 1赵国仙 1赵大伟 2魏爱玲1
作者信息
- 1. 西安石油大学材料科学与工程学院,西安710065
- 2. 中海油能源发展股份有限公司上海采油技术服务分公司腐蚀与防护工程技术中心,深圳518067
- 折叠
摘要
Abstract
The electrochemical behavior and semiconductor properties of passive films formed on super 13Cr martensitic stainless steel in a corrosion solution which contains CO2 and Cl-soaked for 7d at 100,130,150 and 170 ℃ were examined using polarization curves and Mott-Schottky curves.The valence states of elements in the passive films were analyzed by X-ray photoelectron spectroscopy.It is shown that Mo and Ni in the forms of sulfides concentrate respectively in the surface layer of the passive films,but Cr in form of oxides enriches on the surface layer.The passive films formed at 100 ℃ and 130 ℃ are in possession of superior corrosion resistance,but the corrosion resistance of the passive films formed at 150 ℃ and 170 ℃ decreases.The reason for this phenomenon is concerned with the semiconductor properties of the passive films.A typical n-p-type semiconductor behavior is observed for the passive films formed at 100 ℃ and 130 ℃,the doping quantity increases with increasing temperature;but a p-type semiconductor behavior is observed for the passive films formed at 150 ℃ and 170 ℃.For this reason,the corrosion resistance of the martensitic stainless steel decreases with increasing temperature.关键词
马氏体不锈钢/钝化膜/耐蚀性/半导体性质/极化曲线Key words
martensitic stainless steel/passive films/corrosion resistance/semiconductor properties/polarization curves分类
矿业与冶金引用本文复制引用
蔡文婷,赵国仙,赵大伟,魏爱玲..超级13Cr不锈钢的钝化膜耐蚀性与半导体特性[J].北京科技大学学报,2011,33(10):1226-1230,5.
