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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.2
- 수록면
- 390 - 401 (12page)
- DOI
- 10.1007/s12540-022-01242-4
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초록· 키워드
오류제보하기
The effects of temperature and strain on dynamic recrystallization (DRX) and dynamic precipitation of Mg-6Gd-3Y-3Sm-0.5Zr alloy were studied through uniaxial compression. The main conclusions were as follows: the increase of strain ortemperature can promote DRX. The texture strength decreases with the increase of DRX fraction. The pyramidal <a> slipand pyramidal <c + a> slip were activated to coordinate strain when deformed at high-temperature. Under the deformationcondition of T = 400 °C, ̇ = 0.002 s−1 and ε = 0.35, the mechanism of DRX was mainly discontinuous dynamic recrystallization.The rotation continuous dynamic recrystallization gradually becomes the main mechanism with the increase ofstrain and temperature. At the same time, the particle stimulated nucleation (PSN) caused by a single large-sized Mg5(Gd,Y, Sm) or the aggregation of multiple Mg5(Gd, Y, Sm) phases was also found. The dynamic precipitation can stimulate thenucleation of DRX, and the boundary of DRXed grains can become an effective nucleation site for dynamic precipitation.DRX and dynamic precipitation can promote nucleation mutually.
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