Flow behavior and processing map of as-cast Mg-10Gd-4.8Y-2Zn-0.6Zr alloy

被引：77
作者：
Li, H. Z. [1 ,2 ]
Wang, H. J. [1 ]
Li, Z. [1 ]
Liu, C. M. [1 ]
Liu, H. T. [1 ]
机构：
[1] Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
[2] State Key Lab Powder Met, Changsha 410083, Peoples R China
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 528卷 / 01期
关键词：
Mg-10Gd-4.8Y-2Zn-0.6Zr; Stress-strain behavior; Dynamic recrystallization; Processing map; HOT DEFORMATION; DYNAMIC RECRYSTALLIZATION; MECHANICAL-PROPERTIES; AUSTENITIC STAINLESS; MICROSTRUCTURE; WORKING; ZN;
D O I：
10.1016/j.msea.2010.08.090
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Compression tests of Mg-10Gd-4.8Y-2Zn-0.6Zr alloy have been performed in the compression temperature range from 350 degrees C to 500 degrees C and the strain rate range from 0.001 s(-1) to 1 s(-1). The flow behavior has been investigated by the stress-strain behavior and dynamic recrystallization (DRX) behavior. The critical condition and the kinetics of DRX of the alloy deformed at the temperature of 500 degrees C and the strain rate of 0.01 s(-1) were determined. The processing maps at different strains were established, which illustrated that the processing maps of the alloy was sensitive to strains. The optimum parameters for hot working of the alloy has been determined according to the processing map and microstructure at the true strain of 0.7, and that was the deformation temperature of 500 degrees C and the strain rate of 0.01 s(-1). (C) 2010 Elsevier B.V. All rights reserved.
引用
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页码：154 / 160
页数：7
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