摘要
研究了在有硫酸盐还原菌存在的厌氧介质中,Fe^(2+)、Cu^(2+)、Zn^(2+)分别对A_3钢、45铜、紫铜和黄铜腐蚀的影响。结果表明,这些金属离子会促进相应的金属腐蚀,即表现出“同离子效应”。这一现象的产生可能与同种金属离子破坏金属表面腐蚀产物膜、促进硫酸盐还原菌生长以及增大腐蚀电化学过程的去极化等因素有关。
The respective effects of soluble ferrous ions, cupric ions, and zinc ions on mild steel, copper and brass were investigated in the anaerobic medium containing sulfate-reducing bacteria. The results show that there exists a so-called common ion effect, that is, these metal ions can stimulate the anaerobic corrosion of the corresponding metals. This may be related to the influence of these common metal ions on sulfide film formed on the surface of specimens, on the growth of sulfate-reducing bacteria, and on the depolarization of corrosion reaction.
出处
《材料保护》
CAS
CSCD
北大核心
1990年第8期16-18,3,共3页
Materials Protection
