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논문 기본 정보

자료유형
학술저널
저자정보
Xiao Zhou (Central South University) Ruirui Liu (Central South University) Qiang Liu (Central South University) Haitao Zhou (Central South University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.25 No.5
발행연도
2019.1
수록면
1,301 - 1,311 (11page)

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초록· 키워드

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Asymmetric rolling was applied to dual phase Mg–8Li–3Al–1Y alloy with different speed ratio and rolling reduction. Withincreasing reduction at the same speed ratio the population of β-Li grains decreased with a feature of fibered grains alongthe rolling direction. As for different speed ratio under the same reduction, β-Li grains kept equiaxed, but α-Mg phase wasfirst elongated and fibered and then transited to equiaxed small grains. The enhanced yield strength and tensile strengthwere achieved with the increase of rolling reduction and speed ratio. In particular, when speed ratio reached to 1:1.3 underthe same rolling reduction (30%), the optimal mechanical properties were obtained. As for texture evolution, we found thebasal texture was obviously weakened and some new weak texture was formed after asymmetric rolling. Interestingly, it wasnoted that the texture on the side of slow roll is distinct from that on the side of the fast roll due to the different rolling speed.

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