Creation of pure titanium with high strength by low temperature nitriding under the high rate nitrogen diffusion
Project/Area Number |
24760090
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Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Multi-year Fund |
Research Field |
Materials/Mechanics of materials
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Research Institution | Kobe University (2014) Ritsumeikan University (2012-2013) |
Principal Investigator |
KIKUCHI Shoichi 神戸大学, 工学(系)研究科(研究院), 助教 (80581579)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
|
Keywords | 窒化 / チタン / 強度 / 疲労強度 / 疲労 / 強加工 |
Outline of Final Research Achievements |
The purpose of this study is to improve the strength of commercially pure titanium by low temperature nitriding. To diffuse nitrogen into pure titanium even at low temperature, crystal grains of titanium were refined by a severe plastic deformation process. Low temperature nitriding increased surface hardness and low temperature nitrided specimen showed higher strength compared to the conventional nitrided one. This is because the low temperature nitriding suppresses the grain-coarsening of pure titanium and forms a nitrogen compound with lower Young's modulus.
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Report
(4 results)
Research Products
(26 results)