期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Numerical Simulation for Crevice Corrosion of 304 Stainless Steel in Sodium Chloride Solution 被引量:7
1
作者 WANG Wei SUN Hu-yuan +2 位作者 SUN Li-juan SONG Zu-wei ZANG Bei-ni 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2010年第5期822-828,共7页
The authors presented a mechanistic model describing the chemical reactions within a corroded thin, narrow crevice. In the mathematical model, a two-dimensional steady-state was used to predict the crevice pH profile ... The authors presented a mechanistic model describing the chemical reactions within a corroded thin, narrow crevice. In the mathematical model, a two-dimensional steady-state was used to predict the crevice pH profile by taking into account dissolved oxygen and hydrogen ions within the crevice. It consists of six parallel electrochemical reactions: multi anodic reactions(Fe, Cr, Ni dissolution reactions) and three cathodic reactions(the oxygen reduction, the hydrogen reaction and water dissociation). Current density distribution and oxygen concentration distribution were determined to be corresponding to the evolution of potential distribution within the crevice. The contribution of each metal reaction to the overall corrosion process was in proportion to the mole fraction, and the simulation pro vided a good agreement with published experimental results for the crevice corrosion of stainless steel in sodium chloride solution. 展开更多
关键词 Crevice corrosion Finite element method(FEM) Current density pH multi anodic reaction
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部