Na_2MoO_4和EDTA在HCl溶液中对冷轧钢的缓蚀协同效应  

SYNERGISTIC INHIBITION EFFECT OF Na_2MoO_4 AND EDTA ON CORROSION OF COLD ROLLED STEEL IN HCl SOLUTION

作　　者：白玮[1] 李向红[2] 屈庆[3] 江书安[3] 梁学军[1] 木冠南[3] 

机构地区：[1]云南民族大学化学与生物技术学院,昆明650031 [2]西南林学院基础部,昆明650224 [3]云南大学化学系,昆明650091

出　　处：《腐蚀与防护》2007年第9期449-451,共3页Corrosion & Protection

基　　金：国家自然科学基金资助项目(50261004);云南省教育厅基金(06Y073A)

摘　　要：用失重法和电化学法研究了在0.5 mol/L HCl中Na2MoO4和EDTA对冷轧钢的缓蚀协同作用。研究结果表明,单独的Na2MoO4和EDTA对冷轧钢具有一定的缓蚀作用,为阳极型缓蚀剂,且在钢表面的吸附符合Temkin吸附模型。当两者复配后产生了明显的缓蚀协同效应,为一抑制阳极为主的混合抑制型缓蚀剂,并讨论了产生缓蚀协同效应的原因。The synergistic inhibition effect of Na2MoO4 and EDTA on the corrosion of cold rolled steel in HCl solution was investigated by weight loss and polarization curves methods.Both Na2MoO4 and EDTA had moderate inhibitive effect on the corrosion,and acted as anodic type inhibitor for the cold rolled steel.The adsorption of Na2MoO4 and EDTA on the steel surface accorded with the Temkin adsorption isotherm.Incorporation of Na2MoO4 and EDTA significantly improved the inhibition performance.Polarization curves show...

关 键 词：钢 盐酸 钼酸钠 EDTA 缓蚀协同效应 吸附 

分 类 号：TG174.42[金属学及工艺—金属表面处理]