The room temperature mechanical properties of hot rolled 7075 aluminum alloy

被引：75

作者：

Abolhasani, A. ^{[1
]}

Zarei-Hanzaki, A. ^{[1
]}

Abedi, H. R. ^{[1
]}

Rokni, M. R. ^{[1
]}

机构：

[1] Univ Tehran, Sch Met & Mat Engn, Tehran, Iran

来源：

MATERIALS & DESIGN | 2012年 / 34卷

关键词：

Non-ferrous metals and alloys; Mechanical; Scanning electron microscopy; THERMOMECHANICAL TREATMENT; DEFORMATION-BEHAVIOR; AL-CU;

D O I：

10.1016/j.matdes.2011.05.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of equivalent rolling strain and temperature on the microstructural evolution and mechanical properties of 7075-T7351 aluminum alloy has been studied. This has been carried out using tensile testing method. The results indicated that the predominant restoration process during rolling at 250 and 350 degrees C is dynamic recovery, and the driving force is not high enough to trigger the dynamic recrystallization. However, the recrystallized grains are clearly evident in the microstructure of the specimens which were rolled at 450 degrees C. The tensile test results showed that the room temperature strength and ductility were decreased by increasing rolling temperature in the temperature range of 250-350 degrees C. The room temperature mechanical properties of the alloy were started to improve by increasing the temperature up to 450 degrees C. The observed trends were explained through considering the microstructural evolution upon hot rolling. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：631 / 636

页数：6

共 21 条

[1] Influence of the thermomechanical treatment on the microplastic behaviour of a wrought Al-Zn-Mg-Cu alloy [J].