Hot Deformation and Processing Map of Pb-Mg-10Al-1B Alloy

被引：13
作者：
Duan, Y. H. [1 ]
机构：
[1] Kunming Univ Sci & Technol, Sch Mat Sci & Technol, Key Lab Adv Mat Yunnan Prov, Kunming, Yunnan, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2013年 / 22卷 / 10期
基金：
中国国家自然科学基金;
关键词：
constitutive relationship; hot compression; Pb-Mg-10Al-1B alloy; processing map; DYNAMIC RECRYSTALLIZATION; MAGNESIUM ALLOY; BEHAVIOR; WORKING; FLOW; STEEL;
D O I：
10.1007/s11665-013-0604-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The hot deformation behavior of the novel Pb-Mg-10Al-1B alloy has been investigated by hot compressive tests in the temperature range from 453 to 613 K within the strain rate range of 0.01-1 s(-1) using a Gleeble-1500 thermal simulator testing machine. The results show that the flow stress increases with increasing strain rate and decreasing temperature. The hot deformation behavior can be described by a constitutive equation with hyperbolic sine function or Zener-Hollomon parameter. The hot deformation activation energy of Pb-Mg-10Al-1B alloy is 151.2543 kJ/mol. The processing map at the strain of 0.4 exhibits an instable deformation domain of 460-520 K at 0.06-1 s(-1). According to the processing map, the optimum hot-working conditions for Pb-Mg-Al-B alloy are 573 K and 0.01 s(-1).
引用
收藏
页码：3049 / 3054
页数：6
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