【摘 要】
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The corrosion behavior of Mg-(0.25,2.5,5.8 and 15)Y alloys in 3.5wt.％ NaCl aqueous solution was investigated.It was found that the degree of corrosion deteriorat
【机 构】
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State Key Laboratory for Fabrication and Processing of Nonferrous Metals,Beijing Engineering Researc
【基金项目】
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The authors wished to acknowledge the financial support of the National Key Technology R&D Program of China;This work was also supported by Beijing Engineering Research Center for Advanced Manufacturi
论文部分内容阅读
The corrosion behavior of Mg-(0.25,2.5,5.8 and 15)Y alloys in 3.5wt.％ NaCl aqueous solution was investigated.It was found that the degree of corrosion deterioration increased with increasing immersion time up to 2 h.Corrosion modes for the alloys with low and high content of Y element were general corrosion and pitting corrosion,respectively,and the threshold content for the corrosion mode change was 2.5％ for the tested alloys.The experimental results showed that the addition of Y refined the grain of the alloy,and the distribution,i.e.,continuous or not,of the Mg24Y5 phases had great effect on the corrosion rate and corrosion mode.
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