Introduction of nanotwins into nanoprecipitations strengthened CoCrNiMo0.2 alloy to achieve strength and ductility trade-off: A comparative research

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成果类型：

期刊论文

作者：

Zhang, Hao;Ren, Ziyi;Tong, Yonggang;Hu, Yongle;Ji, Xixi;...

通讯作者：

Yonggang Tong<&wdkj&>Xiubing Liang

作者机构：

[Hu, Yongle; Ji, Xixi; Tong, Yonggang; Wang, Kaiming; Zhang, Hao; Ren, Ziyi; Fang, Jingzhong] Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Peoples R China.

[Yang, Lingwei] China Aerodynam Res & Dev Ctr, Hyperveloc Aerodynam Inst, Mianyang 621000, Peoples R China.

[Chen, Hui] Changsha Univ Sci & Technol, Sch Civil Engn, Changsha 410111, Peoples R China.

[Liang, Xiubing] Acad Mil Sci PLA China, Natl Inst Def Technol Innovat, Beijing 100072, Peoples R China.

通讯机构：

[Yonggang Tong] C

[Xiubing Liang] N

College of Automotive and Mechanical Engineering, Changsha University of Science and Technology, Changsha 410114, China<&wdkj&>National Institute of Defense Technology Innovation, Academy of Military Science PLA China, Beijing 100072, China

语种：

英文

关键词：

Nanotwins;Mechanical properties;Deformation behavior;Strengthening mechanisms

期刊：

材料科学技术(英文版)

ISSN：

1005-0302

年：

2023

卷：

156

页码：

172-182

DOI：

10.1016/j.jmst.2023.01.043

基金类别：

National Natural Science Foundation of China [92166105, 52005053]; High-Tech Industry Science and Technology Innovation Leading Program of Hunan Province [2020GK2085]; Science and Technology Innovation Program of Hunan Province [2021RC3096]

机构署名：

本校为第一机构

院系归属：

汽车与机械工程学院

土木工程学院

摘要：

Normal strengthening methods through precipitations and deformation obviously enhance the strength of metallic materials while resulting in the sacrifice of ductility, and synergistic improvement of strength and ductility is currently an urgent requirement. Herein we developed a cryogenic deformation combined with an annealing method to fabricate CoCrNiMo0.2 medium entropy alloy, which achieved an ultrahigh strength of 1.8 GPa with synergistic improvement in strength and ductility. Microstructure, mechanical performance, and strengthening mechanisms of the developed alloys were investigated co...

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Introduction of nanotwins into nanoprecipitations strengthened CoCrNiMo0.2 alloy to achieve strength and ductility trade-off: A comparative research

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