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

被引：46

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.

引用

页数：12

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