2015 Fiscal Year Final Research Report
Development of hydrogen resistant steels as a new class of advanced steels for hydrogen infrastructure
Project/Area Number |
26630351
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Structural/Functional materials
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Research Institution | Kyushu University |
Principal Investigator |
TSUZAKI KANEAKI 九州大学, 工学(系)研究科(研究院), 教授 (40179990)
|
Co-Investigator(Kenkyū-buntansha) |
FUKUSHIMA Yoshihiro 九州大学, 大学院工学研究院, 助教 (40156774)
|
Project Period (FY) |
2014-04-01 – 2016-03-31
|
Keywords | 水素ステーション / 高圧水素ガス / 耐水素鋼 / オーステナイト鋼 / 水素脆化 / 金属疲労 / 疲労き裂進展 / ミクロ金属組織 |
Outline of Final Research Achievements |
New structural materials are required for further extension of fuel cell vehicles and hydrogen stations. In this study, we have investigated mechanical properties of high manganese austenitic steels as a candidate of the new material that gives us the same properties as the conventional SUS316L and the low cost of less than half of SUS316L. As a result, we have found that the Fe-30Mn-4Si-2Al and Fe-15Mn-10Cr-8Ni-4Si alloys do not show any acceleration of fatigue crack growth rate under hydrogen circumstances.
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Free Research Field |
機械材料学
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