Effect of deep cryogenic treatment on the microstructure and mechanical properties of Al-Cu-Mg-Ag alloy

被引:7
|
作者
Wang, Jian [1 ,2 ]
Xie, Jingpei [1 ,2 ]
Ma, Douqin [1 ,2 ]
Mao, Zhiping [1 ,2 ]
Liang, Tingting [1 ,2 ]
Ying, Puyou [3 ]
Wang, Aiqin [1 ,2 ]
Wang, Wenyan [1 ,2 ]
机构
[1] Henan Univ Sci & Technol, Sch Mat Sci & Engn, Luoyang 471023, Peoples R China
[2] Henan Univ Sci & Technol, Prov & Ministerial Coconstruct Collaborat Innovat, Luoyang 471023, Peoples R China
[3] Taizhou Univ, Zhejiang Prov Key Lab Cutting Tools, Taizhou 318000, Peoples R China
基金
中国国家自然科学基金;
关键词
Al-Cu-Mg-Ag alloy; Deep cryogenic treatment; c1; phase; Dislocation; DISLOCATION DENSITY; BEHAVIOR;
D O I
10.1016/j.jmrt.2023.07.130
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Effect of deep cryogenic treatment (DCT) on the aging behavior and tensile properties of Al-Cu-Mg-Ag alloy was investigated. Results show that DCT of Al-Cu-Mg-Ag alloy produces plastic deformation of about 0.2% and high-density dislocations in the a-Al matrix. These dislocations cut second-phase particles in under-aged Al-Cu-Mg-Ag alloy, resulting in a decrease in the size of c1 precipitates and an increase in the number density, thereby weakening the adverse effects of DCT on the tensile properties of the alloy.& COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
引用
收藏
页码:6880 / 6885
页数:6
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