Evaluation of unique behavior of elastic modulus and enhance compatibility between low-elastic modulus and high-strength for Ti-Mn alloys
Project/Area Number |
25820367
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Material processing/Microstructural control engineering
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Research Institution | Tohoku University |
Principal Investigator |
CHO Ken 東北大学, 金属材料研究所, 助教 (00633661)
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Project Period (FY) |
2013-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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Keywords | 高強度化 / 低弾性率化 / 非熱的ω相 / 変形誘起ω相 / 固溶強化 / 気孔率制御 / 結晶構造制御 / 高引張強度 |
Outline of Final Research Achievements |
Microstructures and mechanical properties, including tensile properties and Young’s modulus, of Ti-Mn alloys fabricated by the metal injection molding were investigated. It is found that the formation of athermal ω phase and solid solution strengthening by Mn are reasons for the low-Young’s modulus and high-strength. The Ti-Mn alloys fabricated by the metal injection molding show lower Young’s modulus and higher-strength compared with Ti-6Al-4V alloy, which is the most widely used titanium alloy. Moreover, the ultimate tensile strength and 0.2% proof stress of Ti-13Mn increase from 888 MPa to 1850 MPa and from 827 MPa to 1820 MPa, respectively, after cold-rolling at a reduction ratio of 90%. These strength are almost highest strength for Ti alloys.
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Report
(3 results)
Research Products
(31 results)
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[Presentation] Mechanical properties, microstructures and biocompatibility of low-cost beta-type Ti-Mn alloys for biomedical applications2013
Author(s)
Ken Cho, Mitsuo Niinomi, Masaaki Nakai, Junko Hieda, Pedro Santos, Yoshinori Itoh, Naofumi Ohtsu, Mitsuhiro Hirano and Masahiko Ikeda
Organizer
Materials Science and Technology Conference and Exposition (MS&T) 2013
Place of Presentation
Montreal, Quebec, CANADA
Related Report
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