Effect of Post-annealing and Strong Deformation Process on the Mechanical and Corrosion Properties of a Mg-Mn alloy for Biomedical Application
Journal of the Korean Physical Society(2018)
Abstract
In this study, the influence of an annealing treatment and strong deformation process on the mechanical and corrosion properties of a Mg alloy for biomedical applications was investigated. The mechanical and corrosion properties in a Mg-1.6wt% Mn (M1) alloy as functions of the twin density and grain refinement were compared. The value of the corrosion current ( I corr ) depended linearly on the area fraction of the twin in a coarse and twinned microstructure. The grain refinement via high-ratio differential speed rolling (HRDSR) processing was rather effective for obtaining remarkable increase in hardness and an improvement in the corrosion characteristic compared to a reduction of the twin density in as cast M1 alloy.
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Key words
M1 alloy,Corrosion behavior,Annealing temperature,Twin density,Grain refinement
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