Achieving ultra-strong Magnesium-lithium alloys by low-strain rotary swaging

被引：90

作者：

Yang, Yue ^{[1
]}

Chen, Xiang ^{[1
]}

Nie, Jinfeng ^{[1
]}

Wei, Kang ^{[1
]}

Mao, Qingzhong ^{[1
]}

Lu, Fenghua ^{[1
]}

Zhao, Yonghao ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nano & Heterogeneous Mat Ctr, Nanjing, Peoples R China

来源：

MATERIALS RESEARCH LETTERS | 2021年 / 9卷 / 06期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Mg-Li alloy; twins; stacking faults; strength; IMPROVED MECHANICAL-PROPERTIES; STACKING-FAULTS; MG; DUCTILITY; MICROSTRUCTURE; ANISOTROPY; STRENGTH; PHASE;

D O I：

10.1080/21663831.2021.1891150

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Severe plastic deformation (SPD) with deformation strain significantly larger than one is effective to strengthen metals and alloys. However, such a method will not work for Mg alloys due to their low deformability. In view of this problem, we propose a new alloy strengthening scheme of low-strain deformation, which is to introduce massive twins and stacking faults in coarse grain interior by rotary swaging (RS) at room temperature. By using this scheme, we successfully prepared an ultra-light bulk Mg-Li alloy with new strength record. IMPACT STATEMENT This paper explored a new strengthening way of low deformation strain for metals and alloys and successfully prepared a strongest ultra-light Mg-Li alloy by low-strain rotary swaging process.

引用

页码：255 / 262

页数：8

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