Impacts of Microalloying Elements on the Hardening β\"-Phase in Automotive AlMgSi Alloys - 成果

Impacts of Microalloying Elements on the Hardening β"-Phase in Automotive AlMgSi Alloys

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成果类型：

期刊论文

作者：

Chen, Zhaoqun;Lai, Yuxiang;Liu, Linghong;Liu, Ziran;Chen, Jianghua

通讯作者：

Lai, Yuxiang(lyxzhc123@hnu.edu.cn);Liu, Ziran(zrliu@hunnu.edu.cn)

作者机构：

[Chen, Jianghua; Chen, Zhaoqun; Lai, Yuxiang] Hunan Univ, Coll Mat Sci & Engn, Ctr High Resolut Electron Microscopy, Changsha 410082, Hunan, Peoples R China.

[Liu, Linghong] Cent South Univ Forestry & Technol, Coll Sci, Changsha 410004, Peoples R China.

[Liu, Ziran] Hunan Normal Univ, Dept Phys, Changsha 410081, Peoples R China.

[Liu, Ziran] Hunan Normal Univ, Key Lab Low Dimens Struct & Quantum Manipulat, Minist Educ, Changsha 410081, Peoples R China.

通讯机构：

[Yuxiang Lai] C

[Ziran Liu] D

Center for High-Resolution Electron Microscopy, College of Materials Science & Engineering, Hunan University, Changsha, China<&wdkj&>Department of Physics and Key Laboratory for Low-Dimensional Structures and Quantum Manipulation (Ministry of Education), Hunan Normal University, Changsha, China

语种：

英文

关键词：

Al-Mg-Si alloy;Microalloying;Precipitate;Crystal structure;Elastic properties;First-principles calculations

期刊：

金属学报(英文版)

ISSN：

1006-7191

年：

2023

卷：

期：

页码：

495-506

DOI：

10.1007/s40195-022-01491-7

基金类别：

This work is financially supported by the National Natural Science Foundation of China (Nos. 52001119, 51831004, and 52171006) and the Fundamental Research Funds for the Central Universities.

机构署名：

本校为其他机构

院系归属：

理学院

摘要：

Microalloying elements play a crucial role in mechanical properties and phase stability of metallic alloys. In this work, we employ first-principles calculations and atomic-scale high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) to find promising microalloying elements that will improve the stability and properties of β'/Al interface and β' phase in Al–Mg-Si alloys. First, we define a substitution energy for evaluating the stability of β' phase and β'/Al interface with microalloying elements doped. Then, ...

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Impacts of Microalloying Elements on the Hardening β"-Phase in Automotive AlMgSi Alloys

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