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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.11
- 수록면
- 2,613 - 2,620 (8page)
- DOI
- 10.1007/s12540-022-01176-x
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초록· 키워드
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In this study, the microstructures and mechanical properties of Mg–1Gd–1Y–xZn alloys (x = 0.2, 0.4, 0.6, and 0.8) wereinvestigated. Microstructural evolution was tracked during the process of casting, homogenization, and extrusion. Long-periodstacking-ordered (LPSO) and β phases were formed in the as-cast alloys. The volume fraction of the LPSO phase increasedwith increasing Zn content, whereas that of the β phase decreased. Although the homogenization dissolved the β phase intothe Mg matrix, there was no significant change in the volume fraction of the LPSO phases. Increasing the Zn content led toa slight reduction in grain size and a simultaneous strengthening of texture. The Mg–1Gd–1Y–0.2Zn alloy possessed a highdensity of fine LPSO phases and excellent reinforcement capacity, thereby exhibiting excellent mechanical properties atroom temperature. In addition, the low volume fraction of the LPSO phases in this alloy led to suppressed yield asymmetry.
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