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J. Jpn Inst. Met. Mater. 79(5) 287.pdf7.87 MBPDFView/Open
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Title: ODSフェライト鋼の高温引張試験における粒界辷りの二次元的観察
Other Titles: Two-Dimensional Observation of Grain Boundary Sliding of ODS Ferritic Steel in High Temperature Tension
Authors: 増田, 紘士1 Browse this author
谷口, 聡2 Browse this author
佐藤, 英一3 Browse this author
杉野, 義都4 Browse this author
鵜飼, 重治5 Browse this author →KAKEN DB
Authors(alt): Masuda, Hiroshi1
Taniguchi, Hiroshi2
Sato, Eiichi3
Sugino, Yoshito4
Ukai, Shigeharu5
Keywords: superplastic deformation
grain boundary sliding
grain switching
Issue Date: May-2015
Publisher: 日本金属学会
Journal Title: 日本金属学会誌
Journal Title(alt): Journal of the Japan Institute of Metals
Volume: 79
Issue: 5
Start Page: 287
End Page: 294
Publisher DOI: 10.2320/jinstmet.J2014061
Abstract: High-temperature tensile deformation was performed using ODS ferritic steel, which has grain structure largely elongated and aligned in one direction, in the direction perpendicular to the grain axis. In the superplastic region II, two-dimensional grain boundary sliding (GBS) was achieved, in which the material did not shrink in the grain-axis direction and grain-boundary steps appeared only in the surface perpendicular to the grain axis. In this condition, a classical grain switching event was observed. Using kernel average misorientation maps drawn with SEM/EBSD, dominant deformation mechanisms and accommodation processes for GBS were examined in the different regions. Cooperative grain boundary sliding, in which only some of grain boundaries slide, was also observed.
Type: article
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

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