Hot deformation behavior of an Al-5.7 wt.%Mg alloy with erbium

被引：31

作者：

Meng Gang ^{[1
]}

Li Bolong ^{[1
]}

Li Hongmei ^{[1
]}

Huang Hui ^{[1
]}

Nie Zuoren ^{[1
]}

机构：

[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100124, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 516卷 / 1-2期

关键词：

Aluminum alloy with erbium; Hot deformation; DRV; Microstructure; Zener-Hollomon parameter; ALUMINUM; SUBSTRUCTURE; WORKING;

D O I：

10.1016/j.msea.2009.03.029

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The hot deformation behavior of an Al-5.7 wt.%Mg alloy with erbium was studied by compressive deformation tests in the strain rate range of 0.001-10 s(-1) and temperature range of 300-500 degrees C. The constitutive equations were presented considering the values of A and beta as a function of strain in the exponential function form. The error of predicted and measured data was less than 9%. Dynamic recrystallization was restrained by precipitate with Er and dynamic recovery dominated in the hot deformation. The mechanism of dynamic recovery was dislocation movement and the development of microstructure during deformation can be characterized by the Z parameter, and then the relationship between subgrains and deformation parameters have been also established. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：131 / 137

页数：7

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