1. Microstructure and mechanical properties of rolled sheets of Mg–Gd–Y–Zn–Zr alloy: As-cast versus as-homogenized
- Author
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Xu, C., Zheng, M.Y., Xu, S.W., Wu, K., Wang, E.D., Kamado, S., Wang, G.J., and Lv, X.Y.
- Subjects
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MAGNESIUM alloys , *MICROSTRUCTURE , *CHEMICAL systems , *METAL castings , *MECHANICAL properties of metals , *RECRYSTALLIZATION (Metallurgy) , *DEFORMATIONS (Mechanics) - Abstract
Abstract: In this research, the as-cast and as-homogenized Mg–8.2Gd–3.8Y–1.0Zn–0.4Zr alloy were subjected to the hot rolling with the same processing parameters. The microstructure and mechanical properties of the two kinds of as-rolled sheets were investigated. The sheet rolled from the as-cast alloy was mainly composed of recrystallized α-Mg grains surrounded by Mg3(Gd,Y) eutectic compounds. While the sheet rolled from the as-homogenized alloy was composed of large deformed grains with long-period stacking ordered (LPSO) phase inside and fewer recrystallized α-Mg grains, and exhibited higher strength due to the deformed grains with stronger basal texture and larger volume fraction of long-period stacking ordered (LPSO) phase. [Copyright &y& Elsevier]
- Published
- 2012
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