Abstract
The spheroidizing mechanism of W-phase in the Mg–Zn–Y–Mn–(B) alloys during solid-solution treatment was investigated by using kinetic methodologies. The microstructure and mechanical properties of heat-treated Mg94Zn2.5Y2.5Mn1 alloy containing 0.003 wt% B were compared with heat-treated Mg94Zn2.5Y2.5Mn1 alloy. The heat-treated Mg94Zn2.5Y2.5Mn1 alloy with 0.003 wt% B contained fine and uniform W-phase particles, which exhibited optimal mechanical performance. The ultimate tensile strength, yield strength and elongation were 287.7, 125.5 MPa and 21.1%, respectively.
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Acknowledgements
The authors acknowledge the financial support from the National Natural Science Foundation of China (Nos. 51474153 and 51574175), Ph.D. Programs Foundation of Ministry of Education of the People’s Republic of China (No. 20111402110004) and Natural Science Foundation of Shanxi Province (Nos. 2009011028-3 and 2012011022-1).
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Yang, K., Zhang, JS., Zong, XM. et al. Spheroidizing Behavior and Spheroidizing Kinetics of W-phase During Solid-Solution Treatment in Mg–Zn–Y–Mn–(B) Alloys. Acta Metall. Sin. (Engl. Lett.) 30, 464–469 (2017). https://doi.org/10.1007/s40195-016-0520-0
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DOI: https://doi.org/10.1007/s40195-016-0520-0