Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Grain Boundary Deformation at High Temperature Tensile Tests in ODS Ferritic Steel
Title: | Grain Boundary Deformation at High Temperature Tensile Tests in ODS Ferritic Steel |
Authors: | Sugino, Yoshito Browse this author | Ukai, Shigeharu Browse this author →KAKEN DB | Leng, Bin Browse this author | Tang, Qingxin Browse this author | Hayashi, Shigenari Browse this author →KAKEN DB | Kaito, Takeji Browse this author | Ohtsuka, Satoshi Browse this author |
Keywords: | ODS ferritic steel | tensile test | grain boundary sliding | serration | misorientation | electron backscattering diffraction | recrystallization |
Issue Date: | 15-Jun-2011 |
Publisher: | Iron and Steel Institute of Japan |
Journal Title: | ISIJ International |
Volume: | 51 |
Issue: | 6 |
Start Page: | 982 |
End Page: | 986 |
Publisher DOI: | 10.2355/isijinternational.51.982 |
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. |
Rights: | 著作権は日本鉄鋼協会にある |
Type: | article |
URI: | http://hdl.handle.net/2115/76319 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 鵜飼 重治
|