Structure and mechanical property variations in Mg–Gd–Y–Zn–Zr alloy depending on its composition and processing conditions

Abstract

An effect of alloying element content on mechanical properties and precipitate formation in Mg–RE alloys was studied for Mg–8Gd–4Y–1Zn–0.4Zr (wt%) and Mg–10Gd–5Y–1.8Zn–0.4Zr (wt%). It is shown that small variations in the alloying element concentration can be used to manipulate the alloy microstructure and precipitate formation towards eliminating the asymmetry (tension/compression) and anisotropy of yield stress.

Keywords:

• Mg–RE alloy
• precipitates
• LPSO structure
• yield stress

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Erratum

Acknowledgement

Prof R. Lapovok, acknowledges financial support through the Lady Davis Fellowship for her four month working visit to Technion. The authors express their gratitude to technical and engineering staff of Technion, especially to Mr. Michael Kalina, who contributed significantly to the conducted research. The authors would also like to thank Dr. Chunjie Xu for manufacturing alloys for this project.