Influence of NaCl deposition on atmospheric corrosion behavior of AZ91 magnesium alloy  

作　　者：周婉秋 单大勇 韩恩厚 柯伟 

机构地区：[1]College of Chemistry and Life Science,Shenyang Normal University [2]State Key Laboratory for Corrosion and Protection,Institute of Metal Research,Chinese Academy of Sciences

出　　处：《Transactions of Nonferrous Metals Society of China》2010年第B07期670-673,共4页中国有色金属学报（英文版）

基　　金：Projects(50671005,50971093)supported by the National Natural Science Foundation of China;Project(2007CB613705)supported by the National Basic Research Program of China

摘　　要：Corrosion behavior of AZ91 magnesium alloy under NaCl particle deposition condition was investigated by gravimetric method and surface analysis technique.It was found that the mass gain increased rapidly at the beginning of exposure and then slowly with time.The corrosion morphologies were observed and the results showed that NaCl deposition resulted in the occurrence of localized corrosion.The composition of corrosion product was analyzed using X-ray photo electron spectroscopy.It was suggested that the corrosion product was a mixture of oxide and hydroxide of magnesium and aluminum.Corrosion behavior of AZ91 magnesium alloy under NaCl particle deposition condition was investigated by gravimetric method and surface analysis technique.It was found that the mass gain increased rapidly at the beginning of exposure and then slowly with time.The corrosion morphologies were observed and the results showed that NaCl deposition resulted in the occurrence of localized corrosion.The composition of corrosion product was analyzed using X-ray photo electron spectroscopy.It was suggested that the corrosion product was a mixture of oxide and hydroxide of magnesium and aluminum.

关 键 词：magnesium alloy atmospheric corrosion NaCl deposition X-ray photo electron spectroscopy 

分 类 号：TG172.3[金属学及工艺—金属表面处理]