Effect of Post-annealing and Strong Deformation Process on the Mechanical and Corrosion Properties of a Mg-Mn alloy for Biomedical Application

• Published in: Journal of the Korean Physical Society Vol. 72; no. 6; pp. 692 - 698
• Main Authors: Kim, Min Gyu, Kim, Jin Kon, Kim, Hye Sung, Kim, Woo Jin, Han, Jun Hyun
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Physical Society 01.03.2018; Springer Nature B.V; 한국물리학회
• Subjects: Annealing; Biomedical materials; Corrosion; Corrosion currents; Corrosion effects; Deformation effects; Grain refinement; Magnesium base alloys; Manganese; Manganese base alloys; Mathematical and Computational Physics; Particle and Nuclear Physics; Physics; Physics and Astronomy; Properties (attributes); Theoretical; 물리학; Annealing temperature; Twin density; Corrosion behavior; Grain refinement; M1 alloy
• ISSN: 0374-4884; 1976-8524
• DOI: 10.3938/jkps.72.692

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.