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초록
Ti-30Ni-20Cu (at.%) alloy ribbons with an average grain size of 0.25-0.28 mu m were obtained by applying two-step annealing, comprising a first annealing step at 773-823 K and a second annealing step at 748 K, to amorphous melt-spun ribbons, which was very small compared with ribbons obtained by one-step annealing at 748-823 K (0.64-1.20 mu m). Hysteresis and elongation associated with the B2-B19 transformation were decreased by two-step annealing, while the fracture stress and strain increased. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
키워드
Shape memory alloys; Grain refining; Crystallization; Melt spinning; MARTENSITIC-TRANSFORMATION; NITI; SIZE; CRYSTALLIZATION
- 제목
- Grain refinement of a rapidly solidified Ti-30Ni-20Cu alloy by two-step annealing
- 저자
- Kim, Min-soo; Cho, Gyu-bong; Noh, Jung-pil; Jeon, Young-min; Kim, Yeon-wook; Miyazaki, Shuichi; Nam, Tae-hyun
- 발행일
- 2010-11
- 유형
- Article
- 권
- 63
- 호
- 10
- 페이지
- 1001 ~ 1004
- 언어
- ENG
- 출판사
- PERGAMON-ELSEVIER SCIENCE LTD
- 발행국가
- 영국
- 분량
- 4 페이지
- ISSN
- P 1359-6462