HIGH TEMPERATURE DEFORMATION CONSTITUTIVE MODEL OF GGG70L DUCTION IRON

被引：0

作者：

Huo, P. ^{[1
]}

He, Y. J. ^{[1
]}

Chen, J. F. ^{[1
]}

机构：

[1] North China Univ Sci & Technol, Coll Mech Engn, Tangshan, Hebei, Peoples R China

来源：

METALURGIJA | 2024年 / 63卷 / 02期

关键词：

GGG70L ductile iron; high temperature deformation; stress; Zener-Hollomon parameter; constitutive model;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In order to accurately describe the high temperature deformation behavior of GGG70L ductile iron, the thermal simulation experiments with deformation rate of 0,01 similar to 10 s(-1) were carried out at 800 similar to 1 100 degrees C by Gleeble-1500D thermal simulation machine. The deformation behavior of GGG70L ductile iron was studied. The temperature compensated strain rate Zener-Hollomon parameter was introduced, and the constitutive model of GGG70L ductile iron was established based on the strain compensated Arrhenius model. The results show that the theoreti-cal value of peak stress calculated by the constitutive model is in good agreement with the experimental results, and the correlation is 97,8 %, which can accurately describe the high temperature deformation behavior of GGG70L ductile iron

引用

页码：205 / 208

页数：4