钛合金和95#钢的电偶腐蚀研究  

Study on Galvanic Corrosion of Titanium Alloy and 95# Steel

作　　者：孙禹宏[1] 李竹影[1] 张旺洲[1] 刘冶[1] 

机构地区：[1]海军工程大学,武汉430033

出　　处：《装备环境工程》2014年第2期7-10,37,共5页Equipment Environmental Engineering

摘　　要：目的 研究3％（以质量分数计）NaCl溶液中钛合金与95#钢的面积比以及它们之间的偶对间距对95#钢的电偶腐蚀行为.方法 测量不同阴阳极面积比和不同偶对间距的电偶电流密度、电偶电位曲以及钢的腐蚀速率.结果 偶对间距从24 mm减少到12mm,降低50％,而腐蚀速率约增加34～45倍.结论 电偶腐蚀速率随阴阳极面积比的增大而升高,随着偶对间距的增大而降低.Objective To investigate the area ratio and galvanic couple spacing of titanium alloy and 95# steel for the galvanic corrosion behavior of 95# steel in 3% NaC1 solution. Methods The galvanic corrosion rate of steel and the curve of current density and potential were analyzed. Results The results showed that the galvanic corrosion rate increased with the increase of Sc/Sa, the galvanic couple of spacing decreased to 12 mm from 24 mm, and the corrosion rate increased by 34 ~ 45 times. Conclusion Galvanic corrosion rate increased with the increase of the ratio of anode area, and reduced with the increase of the galvanic couple spacing.

关 键 词：电偶腐蚀 面积比 偶对间距 腐蚀速率 

分 类 号：TG174.36[金属学及工艺—金属表面处理]