Superior strength-ductility synergy of wire-arc directed energy deposited Mg-Al-Si alloys mediated by sub-rapid solidification

Qifei Han,Yueling Guo,Jinlong Hu,Rui Fu,Yangyu Yan,Changmeng Liu

Journal of Magnesium and Alloys（2023）

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摘要

•A finite element model is established to simulate cooling rate.•WA-DED significantly refines the microstructure of Mg-Al-Si alloys.•Hypereutectic microstructure changes into eutectic microstructure.•WA-DED Mg-Al-Si alloys show an excellent synergy of strength and ductility.

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关键词

Wire-arc directed energy deposition,Mg-Al-Si alloys,Microstructure,High temperature stength,Sub-rapid solidification

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