베타 티타늄합금의 준 안정상 TEM 회절도형 분석
(주)코리아스칼라
- 최초 등록일
- 2016.04.02
- 최종 저작일
- 2015.08
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서지정보
ㆍ발행기관 : 한국재료학회
ㆍ수록지정보 : 한국재료학회지 / 25권 / 8호
ㆍ저자명 : 최병학, 심종헌, 김승언, 현용택, 박찬희, 강주희, 이용태, 김영욱
목차
1. 서 론
2. 실험 방법
3. 실험 결과
3.1 Ti 15-3-3-3의 준안정상
3.2 TAF(Ti-6Al-4Fe) 준안정상
4. 고 찰
4.1 모듈레이트 구조 및 회절줄무늬 현상
4.2 위성회절점 현상
5. 결 론
Acknowledgement
References
영어 초록
Metastable phase characteristics of beta Ti alloys were investigated to consider the relationship of the microstructureand diffraction pattern in TEM. TEM analysis showed that the microstructure was mottled as a modulated structure, and thediffraction pattern was composed of spot streaks between the main spots of a stable beta phase with a specific latticerelationship. The modulated structure may be induced by short distance slip or atom movement during a very short intervalof solution treated and quenched (STQ) materials. The athermal ω phase, which could be precipitated at low temperature aging,is also analysed by the metastable phase. The metastable phases including athermal ω phase had a common characteristic ofhardened and brittle behavior because the dislocation slip was restricted by a super lattice effect due to short distance atommovement at the metastable state.
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