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Meeting 2025 TMS Annual Meeting & Exhibition
Symposium Magnesium Technology 2025
Presentation Title Effect of Cooling Rate on the Solidification Behavior of AMZ211-Y/Ca Alloys
Author(s) Jianyue Zhang, Jiashi Miao, Alan Luo, Hongyi Zhan, Jianfeng Wang
On-Site Speaker (Planned) Jianyue Zhang
Abstract Scope A low-cost Mg-Al-Mn-Zn (AMZ211) alloy was developed for automotive road wheel applications while the high Mn content leaded to the formation of blocky Mn-containing intermetallic particles. In this study, the effect of cooling rate on the intermetallic formation and solidification behavior of AMZ211, AMZ211-0.4Ca, and AMZ211-0.8 Y alloys were investigated by a wedge casting experiment. Under low cooling rate, coarse β-Mn(Al) particles were formed in AMZ211 and AMZ211-0.4 Ca alloys and coarse Y-contained Al(Mn,Y) particles were formed in AMZ211-0.8 Y alloy. Under high cooling rate, the formed coarse β-Mn(Al) and Al(Mn,Y) were suspended. This study provided a new strategy to suspend the formation of proeutectic blocky intermetallic in Mg alloys by fast cooling.
Proceedings Inclusion? Planned:
Keywords Magnesium, Solidification, Other

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