2011 Fiscal Year Final Research Report
Improvement of ductility of Al3Ti based on the estimation of deformation by using iage analysis method
| Project/Area Number |
21560106
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Ube National College of Technology |
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Principal Investigator |
YOSHIDA Masashi 宇部工業高等専門学校, 機械工学科, 教授 (10370024)
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| Co-Investigator(Kenkyū-buntansha) |
FUJITA Kazutaka 宇部工業高等専門学校, 機械工学科, 教授 (10156862)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 放電プラズマ焼結 / チタン化合物 / 引張強度 / ビッカース硬度 |
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| Research Abstract |
Titanium tri-aluminide(Al_3Ti) of tetoragonal D0_<22> type structure and(Al, Ni)_3Ti of cubic L1_2 structure has been sintered using spark plasma sintering. The tensile strength of Al_3Ti was 250MPa and that of(Al, Ni)_3Ti was 350MPa. Brake down occured at grain boundaries. Addition of 10% TiB_2 was found to improve the tensile strength of(Al, Ni)_3Ti up to 380MPa. It has also been confirmed that TiB_2-30wt%(Al, Ni)_3Ti composite has Vickers hardness as high as Hv 1700 and tensile strength of 700MPa.
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