Effect of Different Strain Rates on Dynamic Impact Properties and Microstructure of Novel Al-Mg-Zn Alloy

被引：0

作者：

Liu Haoran ^{[1
]}

Zhao Zeyu ^{[1
]}

Zhang Di ^{[1
]}

Zhang Jishan ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2022年 / 51卷 / 05期

关键词：

Al-Mg-Zn alloy; dynamic impact mechanical property; microstructure evolution; ALUMINUM-ALLOY; BEHAVIOR;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The mechanical properties and microstructure evolution of novel Al-Mg-Zn alloy during quasistatic and dynamic impact processes were investigated by Gleeble- 1500, separated Hopkinson pressure bar (SHPB), optical microscope, scan electron microscope and transmission electron microscope. The results show that Al-Mg-Zn alloy exhibits a global strain hardening effect in quasistatic impact. The dynamic yield strength increases first and then decreases slightly with the increase of strain rate. The grains of alloy deform to different degrees with the change of strain rate, and the grains deformation inhomogeneity become more serious with the increase of strain rate. The morphology, density and size of precipitates vary significantly before and after dynamic impact with 4800 s(-1).

引用

页码：1767 / 1772

页数：6

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