Dynamic recrystallization during hot compression processes of 304 austenite stainless steel

被引：2

作者：

Zhao, Xiaodong ^{[1
]}

Liu, Jiansheng ^{[1
]}

Chen, Huiqin ^{[1
]}

He, Wenwu ^{[1
]}

机构：

[1] Taiyuan Univ Sci & Technol, Sch Mat Sci & Engn, Taiyuan, Peoples R China

来源：

ADVANCES IN ROLLING EQUIPMENT AND TECHNOLOGIES | 2011年 / 145卷

关键词：

304 Austenite stainless steel; Hot compression; Flow stress; Microstructure; Grain size; 304-STAINLESS-STEEL; KINETICS;

D O I：

10.4028/www.scientific.net/AMR.145.590

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Hot compression experiments of 304 austenite stainless steel were carried out with Gleeble-1500D simulator under the strain rates of 0.05 s(-1)similar to 0.5 s(-1) at 950 degrees C similar to 1200 degrees C. The effects of temperatures and strain rates on flow stresses during hot compression deformation of 304 austenite stainless steel were investigated. The regression analysis of experiment data was used to evaluated the stress exponent and deformation activation energy, and fit the constitutive equation of the flow stress during hot compression of 304 austenite stainless steel. In addition, the kinetic model and the grain size model of dynamic recrystallization of the steel were obtained by use of the metallographic analysis of the microstructure. The results can provide theoretical basis for design of hot deformation parameters and prediction of microstructure of 304 austenite stainless steel..

引用

页码：590 / 596

页数：7

共 7 条

[1] Mathematical modeling of the recrystallization kinetics of Nb microalloyed steels [J].

Cho, SH ;

Kang, KB ;

Jonas, JJ .

ISIJ INTERNATIONAL, 2001, 41 (07) :766-773

[2]

Lin Yong-cheng, 2008, Journal of Central South University (Science and Technology), V39, P549

[3] Kinetics and critical conditions for the initiation of dynamic recrystallization in 304 stainless steel [J].

Stewart, GR ;

Jonas, JJ ;

Montheillet, F .

ISIJ INTERNATIONAL, 2004, 44 (09) :1581-1589

[4] Static and dynamic strain aging at high temperatures in 304 stainless steel [J].

Stewart, GR ;

Jonas, JJ .

ISIJ INTERNATIONAL, 2004, 44 (07) :1263-1272

[5]

TIAN YJ, 1987, J NE HEAVY MACHINE C, V11, P15

[6]

Wu L.Z., 2008, J SHANGHAI JIAOTONG, V13, P786

[7] Effect of strain rate upon plastic flow of steel [J].

Zener, C ;

Hollomon, JH .

JOURNAL OF APPLIED PHYSICS, 1944, 15 (01) :22-32

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