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Abstract In this study, high-strength Mg97Zn1Y2 alloy was chosen as the matrix material. The damping properties of Mg97Zn1Y2 alloy were influenced by adding an Al element, but the comprehensive improvement… Click to show full abstract
Abstract In this study, high-strength Mg97Zn1Y2 alloy was chosen as the matrix material. The damping properties of Mg97Zn1Y2 alloy were influenced by adding an Al element, but the comprehensive improvement of mechanical properties and damping properties of Mg97Zn1Y2 alloy was achieved by Al addition. Besides, the best addition weight fraction of Al is determined by the efficiency coefficient method (ECM). The results show that the Al addition could not only refine grains of the alloy, but also lead to emergence of network Mg–Al compounds hindering the growth of dendrites. The hardness of the alloy increases with increasing Al weight fraction. The efficiency coefficient method reveals that the Mg97Zn1Y2-3wt.%Al alloy exhibits the best comprehensive performance.
Journal Title: Journal of Alloys and Compounds
Year Published: 2019
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