Elucidation of the mechanism for hydrogen embrittlement in terms of the behavior of diffusive hydrogen
| Project/Area Number |
22560689
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Structural/Functional materials
|
|---|
| Research Institution | Ibaraki University |
|---|
Principal Investigator |
ITOH Goroh 茨城大学, 工学部, 教授 (80158758)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
ITOH Nobuhide 茨城大学, 工学部, 准教授 (70203156)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Keywords | 金属材料 / 水素 / 水素脆化 / 拡散 / アルミニウム / 鉄鋼材料 / アルミニウム合金 / ステンレス鋼 / き裂 / 金属間化合物相 / 侵入挙動 / 金属組織 / トリチウムオートラジオグラフィ / トリチウム / オートラジオグラフィ / 金属間化合物 / 晶出第二相 / 母相 |
|---|
| Research Abstract |
Behavior of diffusive hydrogen was investigated by means of tritium autoradiography that can visualize the location of hydrogen with respect to the microstructure. In a ferritic stainless steel, greater amount of hydrogen was detected at grain boundaries than inside the grains when stress-loaded. The invading hydrogen was deduced to be transferred and trapped to the grain boundaries. In Al-Mg-Zn base alloys, the amount of invading hydrogen was increased by stress loading. The invasion site was the matrix and second phase composed of Al-Cu-Fe.
|
Report
(4 results)
Research Products
(30 results)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Visualization of Diffusive hydrogen2010
Author(s)
Takahito Watakabe, Goroh Itoh, Yuji Hatano
Organizer
The 7th Pacific Rim International Conference on Advanced Materials and Processing
Place of Presentation
Cairns Convention Centre, オーストラリア, ケアンズ市
Year and Date
2010-08-03
Related Report
