外加应力下AZ91D镁合金在NaCl溶液中的电化学行为  

Electrochemical behavior of AZ91D magnesium alloy in NaCl solution under applied stress

作　　者：王占业[1] WANG Zhanye(Technical Center,Maanshan Iron and Steel Co.,Ltd.,Maanshan 243000,China)

机构地区：[1]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243000

出　　处：《石油化工腐蚀与防护》2022年第4期11-15,共5页Corrosion & Protection In Petrochemical Industry

摘　　要：主要研究了外加应力下AZ91D镁合金在NaCl溶液中的极化曲线和阻抗谱,结果表明:只有当AZ91D镁合金试样的外加应力值超过屈服强度和发生塑性应变时,才能激发AZ91D镁合金的电化学活性,从而加速腐蚀。The polarization curves and impedance spectra of AZ91D magnesium alloy in NaCl solution under applied stress were studied in this paper.The results showed only when the applied stress exceeded the yield strength of AZ91D magnesium alloy and plastic strain occurred on the same time,the stress could improve the electrochemical activity of the alloy and accelerate its corrosion.

关 键 词：AZ91D镁合金 应力 电化学 

分 类 号：TG178[金属学及工艺—金属表面处理]