| Project/Area Number |
26630351
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Structural/Functional materials
|
|---|
| 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
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
|---|
| 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 / マルテンサイト変態 |
|---|
| 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.
|
