2010 Fiscal Year Final Research Report
Enhancement of ductility in B2-type intermetallic compound with martensitic transformation
| Project/Area Number |
21760521
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Physical properties of metals
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| Research Institution | Kumamoto University |
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Principal Investigator |
MATSUDA Mitsuhiro Kumamoto University, 大学院・自然科学研究科, 助教 (80332865)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 金属間化合物 / マルテンサイト変態 / 透過型電子顕微鏡 / 高延性化 / 格子欠陥 |
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| Research Abstract |
The improvement of tensile ductility of B2-type ZrCo-based alloy were performed by martensitic transformation. The mechanism of ductility enhancement in those alloys was also discussed. The tensile strength and elongation were increased by substituting Ni or Pd or Pt for Co in the ZrCo-based alloy. The deformation-induced martensite was dominantly formed in the B2 parent phase near the fractured edge. Consequently, we conclude that the remarkable enhancement of the ductility is due to the transformation-induced plasticity associated with the deformation-induced martensite.
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