| 학회 |
한국재료학회 |
| 학술대회 |
2006년 가을 (11/03 ~ 11/03, 수원대학교) |
| 권호 |
12권 2호 |
| 발표분야 |
구조 재료 |
| 제목 |
Effects of Mircostructure and Crystallographic Orientation on the Deformation Behavior of Ni/Ni3Al Single Crystals |
| 초록 |
In order to study the deformation behavior depending on the initial crystallographic orientations and the morphology of Ni3Al precipitates, the plane strain compression tests were carried out on the single crystals of Ni/Ni3Al (Ni-18at.%Al) two-phase alloys. Flow behaviors were strongly dependent on the initial crystallographic orientations in DS18-3 alloys with rods and plates of Ni3Al precipitates rather than DS18-1 alloys with Ni3Al cuboids. For all orientations of DS18-1 alloys, and (110)[001]- and (110)[112]-oriented specimens of DS18-3 alloys, the flow stresses were similar at least up to strain level in this study, whereas the flow stresses were much lower for (100)[011]-, (100)[012]- and (210)[001]-oriented specimens in DS18-3 alloys. Such flow behavior is considered to be closely related to morphology of Ni3Al precipitates and cross-slip within Ni matrix which was related to the operative slip systems. |
| 저자 |
송성훈1, Kyosuke Kishida2, Masahiko Demura3, Toshiyuki Hirano3, 김민철4, 오명훈5, 위당문1
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| 소속 |
1KAIST, 2Kyoto Univ., 3NIMS(일본물질재료연구기구), 4한국원자력(연), 5금오공과대 |
| 키워드 |
Ni/Ni3Al single crystals; plane strain compression; morphology of Ni3Al precipitates; cross-slip
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| E-Mail |
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