摘要
研究了作为牺牲阳极材料的Ｚｎ－Ａｌ－Ｃｄ合金在ＮａＣｌ溶液中与Ａ３钢、３０２不锈钢和纯铜偶接时的接触腐蚀行为，探讨了溶液中Ｃｌ－浓度变化，以及电偶对中阴极金属材料和阴阳极面积比Ａｃ／Ａａ不同时对电偶电流密度ｊＺｎｇ和电偶电势Ｅｇ的影响。结果表明，电偶对中阴极金属材料不同，ｊＺｎｇ随Ｃｌ－浓度增大有不同的变化趋势；ｊＺｎｇ与Ａｃ／Ａａ成正比关系；Ｃｌ－浓度变化对Ｅｇ的影响较大。
The galvanic corrosion behavior of Zn Al Cd alloy coupled to A3 steel,302 stainless steel and copper has been studied in the NaCl solutions.Results show that the change of galvanic current density j Zn g is different with increasing Cl - concentration for Zn Al Cd alloy coupled to dissimilar metals;j Zn g is directly proportional to the area ratio Ac/Aa;effect of Cl - concentration change on the galvanic potential Eg is larger,but effect of the dissimilar cathodic metal and Ac/Aa is smaller in most of concentration.
出处
《材料科学与工程》
CSCD
1996年第4期55-58,共4页
Materials Science and Engineering
关键词
接触腐蚀
氯离子
锌合金
三元
Zn Al Cd alloy ,Galvanic corrosion,Chlorine ions,Concentration.
