Effects of trace element and purification on properties of AZ80 magnesium alloy

来源期刊：中国有色金属学报(英文版)2010年增刊第2期

论文作者：李应举 罗天骄 杨院生

文章页码：407 - 410

Key words：magnesium alloy; purification; corrosion rate; trace element

Abstract: The effects of trace element Fe on the corrosion behavior of AZ80 magnesium alloy were investigated by salt spray test and electrochemical measurements. The results show that the corrosion rate decreases with decreasing the trace element Fe content in an approximately linear relation even though the amount of trace element Fe reduces to 0.000 2% (mass fraction). The electrochemical measurements show that the corrosion potential (φ_corr) of the alloy with lower trace element Fe content shifts to less negative value. It is suggested that the control trace element by purification is an effective way to enhance the corrosion resistance of AZ80 magnesium alloy.

基金信息：the National Basic Research Program of China