2013 Fiscal Year Final Research Report
Fracture mechanism of textured polycrystalline magnesium alloys
| Project/Area Number |
24760578
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | Saga University |
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Principal Investigator |
MORITA Shigeki 佐賀大学, 工学(系)研究科(研究院), 准教授 (00314089)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | マグネシウム合金 / 変形双晶 / 集合組織 / 結晶粒径 / 疲労き裂 / 変形異方性 |
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| Research Abstract |
The fatigue crack propagation behavior of textured polycrystalline magnesium alloys were investigated. The fatigue crack propagation rate is controlled by the microstructure (grain size and texture). The pre-introduced deformation twins existing at a crack tip does not influence the fatigue crack propagation rate. On the other hand, the living deformation twins raise the fatigue crack propagation rate during the cyclic loading.
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