Study of novel, thermally resistant Mg alloy with dual-phase

Abstract

A novel, thermally resistant, dual-phase Mg alloy was prepared, and the microstructural evolution and tensile properties were investigated. The results showed that the Mg alloy matrix mainly consisted of the α-Mg and β-Li phases, and the solidified microstructure was gradually refined with increasing ZrO₂ incorporation. The tensile properties of the extruded and annealed alloys were markedly improved with increasing ZrO₂ content. After annealing at 603 K for 8 h, the alloy strength remained almost stable, whereas the plasticity increased. Analysis of the evolution of the properties and fracture morphology showed that this type of Mg alloy possessed good thermal resistance and formability.

KEYWORDS:

• Mg alloy
• microstructure
• tensile property

Acknowledgements

The authors gratefully acknowledge financial support from the Youth Cultivation Program of the Education Department of Liaoning Province (JYT2020111).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the youth cultivation program of education department of Liaoning province: [Grant Number JYT2020111].