Abnormal Twinning Behavior and Constitutive Modeling of a Fine-Grained Extruded Mg-8.0Al-0.1Mn-2.0Ca Alloy under High-Speed Impact along Various Directions

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期刊论文

作者：

Chen, Fei-Yang;Guo, Peng-Cheng;Jiang, Zi-Han;Liu, Xiao;Song, Tie-Jun;...

通讯作者：

Guo, Peng-Cheng(gpch860429@163.com);Xie, Chao(xiechao@nbu.edu.cn)

作者机构：

[Chen, Fei-Yang; Guo, Peng-Cheng; Jiang, Zi-Han] Cent South Univ Forestry & Technol, Coll Mech & Elect Engn, Changsha 410004, Peoples R China.

[Chen, Fei-Yang; Xie, Chao] Ningbo Univ, Coll Mech Engn & Mech, Ningbo 315211, Peoples R China.

[Song, Tie-Jun; Guo, Peng-Cheng] Xiangtan Univ, Coll Mech Engn, Xiangtan 411105, Peoples R China.

[Liu, Xiao] Hunan Univ Sci & Technol, Coll Mat Sci & Engn, Xiangtan 411201, Peoples R China.

通讯机构：

[Peng-Cheng Guo; Chao Xie] C

College of Mechanical and Electrical Engineering, Central South University of Forestry and Technology, Changsha, China<&wdkj&>College of Mechanical Engineering, Xiangtan University, Xiangtan, China<&wdkj&>College of Mechanical Engineering and Mechanics, Ningbo University, Ningbo, China

语种：

英文

关键词：

High-speed impact;Magnesium alloy;Twinning behavior;Constitutive model;Anisotropy

期刊：

金属学报(英文版)

ISSN：

1006-7191

年：

2023

卷：

期：

页码：

281-294

DOI：

10.1007/s40195-022-01471-x

基金类别：

This work was financially supported by the National Natural Science Foundation of China (Nos. 11872216 and 52071139), the Natural Science Foundation of Hunan Province (Nos. 2019JJ50586 and 2019JJ50591) and the Scientific Research Project of Hunan Provincial Department of Education (Nos. 18B193 and 21B0471).

机构署名：

本校为第一机构

院系归属：

机电工程学院

摘要：

To understand the mechanical and twinning behaviors of a fine-grained extruded Mg–8.0Al–0.1Mn–2.0Ca alloy under high-speed impact, impact tests were carried out using a split Hopkinson pressure bar, and microstructures at strains of 0.05, 0.10 and 0.20 were obtained using a series of stop rings manufactured by high-strength steel. The stress response and twinning behavior are closely related to loading direction and applied strain rate. The true stress–true strain curves are s-shaped in extrusion direction (ED) and c-shaped in transverse di...

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Abnormal Twinning Behavior and Constitutive Modeling of a Fine-Grained Extruded Mg-8.0Al-0.1Mn-2.0Ca Alloy under High-Speed Impact along Various Directions

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