| Project/Area Number |
25420010
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | University of Yamanashi |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 生分解性マグネシウム合金 / 腐食挙動 / 表面性状 / 拍動 / マグネシウム合金 / 数値流体解析シミュレーション / 腐食予測 / 孔食 / 腐食 / WE43マグネシウム合金 / AZ31マグネシウム合金 / せん断応力 / 流れ場における腐食速度 / 国際研究者交流：アイルランド国 / 塑性変形 / ステント / 国際情報交換 / アイルランド |
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| Outline of Final Research Achievements |
In recent years, the application of bio-degradable materials for medical implants has drastically increased. Therefore, much research about magnesium-based stent applications has been focused on controlling the corrosion rate, mechanical properties, effect of magnesium alloy on our body so that the bio-corrosion of the stent applications can be tailored to the specific anatomical site. The corrosion behavior in the fluid flow was influenced by these environmental conditions such as the strain, the surface condition and the flow rate. Thus, our project in the present work is to evaluate the corrosion progress of the specimen geometries in the fluid flow field. The corrosion test of the various samples was carried out using the sodium chloride solution in a simulated blood fluid. Then, the mass loss, the corrosion behavior and the corroded area was evaluated. From the results of corrosion test, the corrosion behavior of AZ31 magnesium alloy in the flow field was clarified.
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