Effect of deep cryogenic treatment on improving the high-temperature impact resistance of Al-Zn-Mg-Cu alloy

被引：2
|
作者：
Song, Haoze [1 ]
Zhao, Guanlin [1 ]
Duan, Shuwei [2 ]
Matsuda, Kenji [3 ]
Guo, Fuqiang [1 ]
Zou, Yong [1 ]
机构：
[1] Shandong Univ, Sch Mat Sci & Engn, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Peoples R China
[2] Yantai Univ, Coll Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China
[3] Univ Toyama, Fac Sustainable Design, Toyama 9308555, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2024年 / 909卷
关键词：
Al-Zn-Mg-Cu alloy; Deep cryogenic treatment; Thermal shock; High-temperature mechanical properties; Microstructure; MECHANICAL-PROPERTIES; MICROSTRUCTURE;
D O I：
10.1016/j.msea.2024.146846
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The aging Al-Zn-Mg-Cu alloy exhibits a significant decrease in performance after undergoing thermal shock. In order to improve the resistance of this type of alloy to thermal shocks, the influence of deep cryogenic treatment (DCT) on the high temperature mechanical properties and microstructure of thermal shocked Al-Zn-Mg-Cu alloy is investigated in this paper. It was found that the mechanical properties of Al-Zn-Mg-Cu alloys decrease significantly with the increase of electric heating temperature. The deep cryogenic treatment reduced the grain size of Al-Zn-Mg-Cu alloy, increased the density of the precipitates, and also inhibited the coarsening of the precipitates. Therefore, the deep cryogenic treatment can slow down the weakening effect of Al-Zn-Mg-Cu alloy at high temperatures.
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收藏
页数：12
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