镁合金阳极在氯化钠溶液中电偶腐蚀的电化学振荡行为  

Electrochemical behaviour of typical magnesium alloys in sodium chloride solutions

作　　者：徐桂英[1] 王凤平[1] 唐丽娜[1] 

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2007年第4期455-457,共3页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(50171011);辽宁省教育厅科学技术研究项目(2004C003)

摘　　要：使用电偶腐蚀仪研究了AZ31、AZ63B和AZ91D3种镁合金在不同浓度NaCl溶液中的电偶腐蚀行为.在研究的3种镁合金材料中,AZ63B的电偶电流和电偶电位随时间变化较平稳,其次是AZ31镁合金,而AZ91D镁合金在0.1%的NaCl溶液中的电偶电流和电偶电位随时间出现周期性的电化学振荡.AZ63B最适合做阴极保护中的牺牲阳极材料,AZ91D不适合做阴极保护中的牺牲阳极材料.The galvanic corrosion behavior of AZ31, AZ63B and AZ91D in different concentrations of NaCl electrolyte solutions has been studied by using a galvanic corrosion meter. The Galvanic current and the couple potential of AZ63B varied with time most slightly. It is the suitable scarified material to cathodic protection. It is the AZ31 secondly. Electrochemical oscillations of AZ91D in 0.1% NaCl solution were observed and investigated for the first time. AZ91D is improper for scarified material in cathodic protection.

关 键 词：金属腐蚀 MG合金 电化学振荡 阴极保护 

分 类 号：O646.54[理学—物理化学]