Microstructures and Strength of Hot-Rolled Mg-Zn-Y Alloys

Abstract:

The effects of the hot-rolling process on microstructures and strength were investigated for two kinds of magnesium alloy Mg-Zn-Y and Mg-Zn-Y-Nd. In comparison with the as-cast alloys, the tensile strength of Mg-Zn-Y and Mg-Zn-Y-Nd both increases 45%, whereas their elongation decreases 73%, 60% via hot-rolling process, respectively. The results show that the dynamic recrystallization process and the pining effect of I-phase during hot rolling contribute to the fine-grained structure formation. The hot-rolling process has refined the grain size greatly.

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 137-140
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.137
• Online since: July 2011
• Authors: Yao Min Zhu, Qiu Ran Gao, Feng Zhang Ren, Shi Jie Fang
• Keywords: Hot Rolling, Mg-Zn-Y, Microstructure, ND, Strength

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