Beneficial use of interstitial elements amd work hardening mechanism in high strength titanium alloys
Project/Area Number |
23560840
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Structural/Functional materials
|
Research Institution | Kyushu University |
Principal Investigator |
|
Co-Investigator(Renkei-kenkyūsha) |
MOROOKA Satoshi 首都大学東京, システムデザイン学部システムデザイン学科, 助教 (10534422)
|
Project Period (FY) |
2011 – 2013
|
Project Status |
Completed (Fiscal Year 2013)
|
Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
Keywords | チタン合金 / 侵入型元素 / 酸素 / 窒素 / 機械的性質 / 強度-延性バランス / 強度 / 延性 / 加工硬化 / 中性子回折 / 不均一変形 |
Research Abstract |
High oxygen or nitrogen titanium alloys were produced on the basis of a low alloy titanium alloy consisting of conventional alloying elements, and then the microstructure and mechanical property were investigated. As a result, the microstructure was hardly influenced by oxygen and nitrogen, while the strength of the alloys were greatly increased without deteriorating ductility too much. The reason of the improvement of mechanical property due to oxygen and nitrogen addition was discussed in terms of the strength ratio of alpha phase to beta phase,and then it was clarified by theoretical considerations of the strain uniformity effect as well as the positive work hardenability effect of beta phase.
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Report
(4 results)
Research Products
(13 results)