Grain Boundary Deformation at High Temperature Tensile Tests in ODS Ferritic Steel
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- Sugino Yoshito
- Hokkaido University, Graduate School of Engineering, Materials Science and Engineering
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- Ukai Shigeharu
- Hokkaido University, Graduate School of Engineering, Materials Science and Engineering
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- Leng Bin
- Hokkaido University, Graduate School of Engineering, Materials Science and Engineering
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- Tang Qingxin
- Hokkaido University, Graduate School of Engineering, Materials Science and Engineering
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- Hayashi Shigenari
- Hokkaido University, Graduate School of Engineering, Materials Science and Engineering
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- Kaito Takeji
- Advanced Nuclear System R&D Directorate, Japan Atomic Energy Agency (JAEA)
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- Ohtsuka Satoshi
- Advanced Nuclear System R&D Directorate, Japan Atomic Energy Agency (JAEA)
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Abstract
The tensile test of the recrystallized ODS ferritic steels was performed in the loading direction for the longitudinal and 45° inclined with respect to the grains alignment. The testing temperature was 800°C and the strain rate was 10–4 s–1. A clear serration structure was observed at near the grain boundaries at the surface of 45° specimen ruptured. This is a clear evidence of the occurrence of the grain boundary sliding in 45° direction. For the total strain of 12% in 45° direction, grain boundary deformation induced by sliding was estimated about 9%, whereas the amounts of the transgranular strains was 2% measured by EBSD analysis. The grain-subdivision was also identified near grain boundaries by FIB analysis, which could be caused by a dynamic recrystallization during the localized grain boundary deformation.
Journal
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- ISIJ International
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ISIJ International 51 (6), 982-986, 2011
The Iron and Steel Institute of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282681465206016
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- NII Article ID
- 10030381684
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- NII Book ID
- AA10680712
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- COI
- 1:CAS:528:DC%2BC3MXotFOmsbg%3D
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- ISSN
- 13475460
- 09151559
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- HANDLE
- 2115/76319
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed