The main strengthening phases transformation and their strengthening mechanisms in as-cast Mg-Gd-(Y)-Zn alloys: A review

被引：59
作者：
Deng, Daiyi [1 ]
Cheng, Renju [1 ]
Jiang, Bin [2 ]
Yang, Mingbo [1 ]
Wang, Haijun [1 ]
Zhou, Yongfeng [1 ]
Yu, Chuntang [1 ]
Ma, Yanlong [1 ]
Peng, Jian [2 ]
Pan, Fusheng [2 ]
机构：
[1] Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400054, Peoples R China
[2] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 968卷
基金：
中国国家自然科学基金;
关键词：
Mg-Gd-(Y)-Zn alloy; Strengthening phase; Strengthening mechanism; As-cast magnesium alloy; MG-GD-ZN; STACKING ORDERED STRUCTURE; AGE-HARDENING RESPONSE; ATOMIC-SCALE INSIGHTS; Y-ZR ALLOY; MICROSTRUCTURE EVOLUTION; HEAT-TREATMENT; MAGNESIUM ALLOYS; AGING TREATMENT; LPSO STRUCTURE;
D O I：
10.1016/j.jallcom.2023.171782
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Magnesium alloys are highly sought after as environment-friendly engineering materials for the 21st century. Mg-RE (rare earth) alloys, especially Mg-Gd-(Y)-Zn alloys, have attracted significant interest in the past two decades due to their potential high performances over conventional or commercial magnesium alloys. Recent research has revealed that the LPSO? & beta; series and & gamma; series phases are the main strengthening phases in Mg-Gd(Y)-Zn alloys. This article aims to provide a review of recent progress on the transformation of these main strengthening phases in the as-cast Mg-Gd-(Y)-Zn alloys, especially the co-existence of multiple strengthening mechanisms. Further, substantial research recommendations for the future development of high-performance and even ultra-high-strength casting Mg-RE alloys are proposed in terms of casting procedure, heat treatment process, alloying elements, and strength-plasticity trade-off.
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页数：12
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