AZ91D镁合金在北京地区的大气腐蚀行为研究  

ATMOSPHERIC CORROSION BEHAVIOR OF AZ91D MAGNESIUM ALLOY IN BEIJING AREA

作　　者：王凤平[1] 李晓刚[2] 林翠[2] 焦庆祝[1] 李杰兰[1] 

机构地区：[1]辽宁师范大学化学系,大连116029 [2]北京科技大学腐蚀与防护中心,北京100083

出　　处：《中国腐蚀与防护学报》2004年第6期345-349,共5页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金项目 (5 0 1710 11);中国博士后科学基金资助

摘　　要：利用室外大气暴露试验 ,研究了AZ91D镁合金在北京地区的平均大气腐蚀速率 ,并与相同条件下A3钢的大气腐蚀情况进行了对比 .采用扫描电镜 (SEM )、X -射线衍射 (XRD)、X射线能谱 (EDS)以及红外光谱 (IR)等多种现代表面分析技术对腐蚀产物的形貌、组成、结构等进行分析 .与A3钢相比 ,AZ91D镁合金具有良好的耐大气腐蚀性能 ,具有局部腐蚀的特征 .The atmospheric corrosion behavior of AZ91D magnesium alloy were studied by means of the outdoor exposure in Beijing atmosphere.The average corrosion rates of AZ91D were calculated by using weight loss method.Many methods,such as metallographic examination,SEM,XRD,EDS,IR were employed to analyze the surface properties (such as morphology,composition and structure) of the atmospheric corrosion products of AZ91D.The result of the outdoor exposure shows that AZ91D magnesium alloy is resistant to atmospheric corrosion,compared with A3 steel.The atmospheric corrosion of AZ91D magnesium alloy is a localized corrosion.

关 键 词：AZ91D镁合金 大气腐蚀 耐蚀性 

分 类 号：TG172.3[金属学及工艺—金属表面处理]