缓蚀剂BMAT对不锈钢在5%盐酸中(含Fe^(3+))的缓蚀作用  

Corrosion Inhibition Effect of BMAT on Stainless Steel in 5%HCl Containing Fe^(3+)

作　　者：张果金[1] 魏宝明[1] 邱玉珠[2] 

机构地区：[1]南京化工大学应用化学系,210009 [2]南京大学化学系,210008

出　　处：《材料保护》1998年第8期3-5,共3页Materials Protection

摘　　要：用失重法及通过测定极化曲线，研究了5％HCl中Fe3+_对316L腐蚀的影响。结果表明，Fe3+能改变不锈钢的阴极反应过程，当其含量超过1．5mmol／L后，316L的腐蚀速度随着Fe3+浓度的增大而增大。溶液中加入BMAT后，对Fe3+的去极化过程有明显的抑制作用，且缓蚀剂的用量需根据Fe3+的浓度来调整，BMAT的使用量为3mmol／L时，酸洗液中Fe3+的浓度应小于1．5mmol／L。The corrosion inhibition effect of BMAT on stainlesssteel in 5%HCl containing Fe3+ was studied by weightloss and polarization curve measurements. It wasshown that the Fe3+ could change cathode reactions ofstainless steel. The corrosion rate of stainless steel increased with Fe3+ increasing as the Fe3+ concentrationexceeds 1. 5 m mol/L. BMAT could inhibit depolarization of Fe3+, so the BMAT concentration should beadjusted by virtue of Fe3+ content.

关 键 词：不锈钢 盐酸 缓蚀剂 腐蚀 BMAT 缓蚀作用 

分 类 号：TG174.42[金属学及工艺—金属表面处理]