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

2014 Fiscal Year Final Research Report

• 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
• 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

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.

Free Research Field

金属生体材料