Hot deformation behavior and processing maps of Mg-Zn-Cu-Zr magnesium alloy

被引：0

作者：

Yu, Hui ^{[1
,2
]}

Yu, Hua-shun ^{[1
]}

Kim, Young-min ^{[2
]}

You, Bong-sun ^{[2
]}

Min, Guang-hui ^{[1
]}

机构：

[1] Shandong Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Liquid Solid Evolut & Proc Mat, Jinan 250061, Peoples R China

[2] Korea Inst Mat Sci, Light Met Grp, Chang Won 642831, South Korea

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2013年 / 23卷 / 03期

关键词：

Mg alloy; Cu addition; flow stress; deformation behavior; constitutive equation; artificial neural network; processing map; TEMPERATURE FLOW BEHAVIOR; DYNAMIC RECRYSTALLIZATION; MECHANICAL-PROPERTIES; CONSTITUTIVE ANALYSIS; PLASTIC-DEFORMATION; NEURAL-NETWORKS; PREDICT;

D O I：

10.1016/S1003-6326(13)62526-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The deformation behaviors of a new quaternary Mg-6Zn-1.5Cu-0.5Zr alloy at temperatures of 523-673 K and strain rates of 0.001-1 s(-1) were studied by compressive tests using a Gleeble 3800 thermal-simulator. The results show that the flow stress increases as the deformation temperature decreases or as the strain rate increases. A strain-dependent constitutive equation and a feed-forward back-propagation artificial neural network were used to predict flow stress, which showed good agreement with experimental data. The processing map suggests that the domains of 643-673 K and 0.001-0.01 s(-1) are corresponded to optimum conditions for hot working of the T4-treated Mg-6Zn-1.5Cu-0.5Zr alloy.

引用

页码：756 / 764

页数：9

共 21 条

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