발간논문

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Vol.53, No.12, 844 ~ 851, 2015
Title
Effect of Recrystallization and Natural Aging on Mechanical Properties of Al-Zn-Mg-Cu-Sc Alloys
유민규 Min Kyu Yu , 권오열 Oh Yeol Kwon , 박태원 Tae Won Park , 이용연 Yong Yeon Lee , 홍순형 Soon Hyung Hong
Abstract
In this study, the recrystallization volume fraction of the Al-Zn-Mg-Cu-Sc alloy after solid solution heat treatment varied with different temperatures (445℃-465℃). The highest elongation of the Al-Zn-Mg-Cu-Sc alloy was obtained at 465 ℃. Further, the hardness and strength of the solid solution heat treated Al-Zn-Mg-Cu-Sc alloy increased at room temperature due to G.P zone precipitates. The results confirmed that we can obtain advanced mechanical properties for the Al-Zn-Mg-Cu-Sc alloy from solid solution heat treatment and natural aging.
Key Words
Al-Zn-Mg-Cu-Sc alloy, recrystallization, natural aging, G.P zone
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