Achieving high strength and high damping capacity in biodegradable magnesium

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560810
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Physical properties of metals
• Research Institution: Osaka Municipal Technical Research Institute
• Principal Investigator: WATANABE Hiroyuki 地方独立行政法人大阪市立工業研究所, 加工技術研究部, 研究主任 (90416339)
• Co-Investigator(Kenkyū-buntansha): MUKAI Toshiji 神戸大学, 大学院工学研究科, 教授 (40254429)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: マグネシウム / ダンピング / 生体内分解性

Outline of Final Research Achievements

The purpose of this study was to achieve both high strength and high damping capacity through thermomechanical processing in biodegradable magnesium, which is applicable to orthopedic implants. To begin with, the effect of microstructural factors including grain size, texture and the existence of twins on damping capacity was clarified in pure magnesium. By controlling the microstructure of Mg-Ca alloys through thermomechanical processing, the alloy showed higher strength and damping capacity.

Free Research Field

材料加工学