pH值、离子浓度、温度对T23与T92电化学腐蚀行为的影响  

Effect of pH Value, Ion Concentration and Temperature to Corrosion Behavior of T23 and T91

作　　者：余菲[1] 袁曹龙[1] 蒋娅[1] 林应奇[1] 李宇春[1] 

机构地区：[1]长沙理工大学化学与生物工程学院,湖南长沙410114

出　　处：《全面腐蚀控制》2010年第4期6-10,共5页Total Corrosion Control

摘　　要：通过电化学和失重法对T23和T91的腐蚀行为进行研究,发现:在弱碱溶液中,随着离子浓度和温度的变化,T23和T91材料表面均有钝化膜形成,而成膜的温度不同,另外,OH-的存在,对Cl-迁移有所抑制,在一定程度上可减缓材料的腐蚀。To study the corrosion behavior of T23 and T91 By electrochemical and weight-loss method is found that： In the weak base solution, with the ion concentration and temperature, T23 and T91 have a surface passivation film formation, while the film-forming temperature is different. Also, OH-existence makes an inhibiting effect on the Cl-transfer, to a certain extent, which can reduce corrosion of materials.

关 键 词：电化学 失重法 钝化膜 Cl-温度 腐蚀 

分 类 号：TG174.36[金属学及工艺—金属表面处理]