Influence of nitrogen content on the corrosion resistance of 304 stainless steel

摘要：

By changing the nitrogen content from 20 mass% to 0.726 mass%,the influence of nitrogen content on the corrosion resistance of 304 stainless steels was investigated.The anodic polarization curves and the electrochemical impedance spectrum of nitrogen alloyed 304 stainless steels were measured in lmol/L H2 SO4 + 0.5 mol/L NaCl solution.The corrosion resistance increased with the increase of nitrogen content when the nitrogen content is less than 0.438% and then decreased when the nitrogen content increased further.A minimum value of corrosion rate appeared at the nitrogen content around 0.438%.The electrochemical impedance analysis showed a maximum interface resistance and a minimum interface capacitance value at the nitrogen content around 0.438%.

关键词： high nitrogen steel stainless steel corrosion resistance polarization electrochemical impedance

作者: Li Guangqiang Qin Qingwei Dong Tingliang Zhu Chengyi

作者单位: Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China

会议类型: 国际会议

会议名称: 第三届宝钢学术年会(Baosteel BAC 2008)

会议地点: 上海

会议语种:英文

页码: 698-701

在线出版日期: 2008-09-26（万方平台首次上网日期，不代表论文的发表时间）