https://orcid.org/0000-0001-9296-6272
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Abstract
The microstructural evolution and corrosion behaviour of three kinds of Mg alloy containing AlTiB (α, α + , ) were investigated. The result showed that changing Li content can transform the matrix of Mg alloy from α-Mg to -Li. Except for -Li, the microstructural morphology of α-Mg is refined by TiB2, In the study of corrosion behaviour, a structure of multiple layers is formed on corrosion surfaces, and the α + alloy has a poor corrosion resistance which results from a mechanism of the dynamic galvanic couple between α-Mg and -Li. However, the -Li alloy with high Li content has relatively good corrosion resistance.
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Funding
The authors gratefully acknowledge financial support from the Youth Cultivation Program of Liaoning Provincial Education Department [grant number JYT2020111], Liaoning Revitalization Talents Program [grant number XLYC2007075] and the National Natural Science Foundation of China [grant number 51701128].