Abstract
The effect of hydrogen on the crack tip cyclic slip deformation is investigated using a single-crystalline Fe-3.2%Si alloy. The fracture surface and the near-tip cross-section are observed in detail by SEM and TEM respectively. The cyclic slip-off process by a pair of symmetrical slip system about the crack ((11̄2̄)[11̄1̄] / (11̄2)[1̄11] pair) is operative in the non-hydrogen atmosphere. On the other hand, other pairs of slip system ((011)[11̄1] / (101)[1̄11] pair and (1̄01)[11̄1] / (01̄1)[1̄11] pair) are also found to be operative and slip is localized around the vicinity of the crack in the hydrogen atmosphere.
| Original language | English |
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| Title of host publication | Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials |
| Pages | 203-210 |
| Number of pages | 8 |
| Publication status | Published - Dec 1 2009 |
| Event | 2008 International Hydrogen Conference - Effects of Hydrogen on Materials - Jackson, WY, United States Duration: Sep 7 2008 → Sep 10 2008 |
Publication series
| Name | Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials |
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Other
| Other | 2008 International Hydrogen Conference - Effects of Hydrogen on Materials |
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| Country | United States |
| City | Jackson, WY |
| Period | 9/7/08 → 9/10/08 |
All Science Journal Classification (ASJC) codes
- Materials Chemistry
- Nuclear and High Energy Physics
- Atomic and Molecular Physics, and Optics
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Cite this
Takahashi, Y., Tanaka, M., Higashida, K., & Noguchi, H. (2009). Effect of hydrogen on microscopic deformation process near stage II fatigue crack tip. In Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials (pp. 203-210). (Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials).