Building up of the evaluation system for in vitro fatigue of the biodegradable Mg-Ca alloy

Research Project

Project/Area Number	25820357
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Structural/Functional materials
Research Institution	Kobe University
Principal Investigator	IKEO Naoko 神戸大学, 工学(系)研究科(研究院), 助教 (80647644)
Project Period (FY)	2013-04-01 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000) Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords	生体材料 / マグネシウム合金 / 生体内分解性 / in vitro / 疲労試験 / 生体内分解性材料 / マグネシウム / 疲労
Outline of Final Research Achievements	The fatigue test system of magnesium alloys under the biomimetic circumstance were successfully completed by using the tank for simulated body fluid and the jig coated with DLC to avoid the galvanic corrosion between specimen and jig. In this research, the in vitro fatigue properties of magnesium-calcium alloys were also evaluated with this system. The obtained results shows that the in vitro fatigue properties can be improved by the strengthening via grain size refinement. The fractographes shows that the major fracture mechanism under the cyclic loading was hardly affected by the surrounding environment.

Report

(3 results)