Regulating microstructure of Mg–Li–Al–Zn alloy for enhancing comprehensive performance through friction stir additive manufacturing

In this work, friction stir additive manufacturing was successfully performed to fabricate the dual-phase Mg–Li–Al–Zn magnesium alloy. A fine-grained microstructure decorated by uniformly dispersed precipitates was observed in the stir zone. Through the combined effects of grain refinement and solid...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2024-03, Vol.895, p.146239, Article 146239
Main Authors: Geng, Yingxin, Zhou, Mengran, Zhu, Yixing, Chen, Yujie, Xin, Tongzheng, Chen, Gaoqiang, Wu, Ruizhi, Shi, Qingyu
Format: Article
Language:English
Subjects:
Corrosion resistance
Friction stir additive manufacturing
Grain refinement
Mechanical properties
Mg–Li–Al–Zn alloy
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Summary:In this work, friction stir additive manufacturing was successfully performed to fabricate the dual-phase Mg–Li–Al–Zn magnesium alloy. A fine-grained microstructure decorated by uniformly dispersed precipitates was observed in the stir zone. Through the combined effects of grain refinement and solid solution strengthening, the friction stir additive manufactured Mg–Li–Al–Zn alloy exhibited the synergistic enhancement of strength, ductility, and corrosion resistance.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2024.146239