Hot Deformation Behavior of F6NM Stainless Steel

被引：8

作者：

Ma, Long-teng ^{[1
]}

Wang, Li-min ^{[1
]}

Liu, Zheng-dong ^{[1
]}

Yang, Gang ^{[1
]}

Lu, Lun ^{[2
]}

Peng, Meng-du ^{[1
,3
]}

机构：

[1] Cent Iron & Steel Res Inst, Inst Special Steels, Beijing 100081, Peoples R China

[2] Dongbei Special Steel Grp Co Ltd, Tech Ctr Fushun Special Steel Co Ltd, Fushun 113001, Liaoning, Peoples R China

[3] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2014年 / 21卷 / 11期

关键词：

F6NM steel; dynamic recrystallization; flow instability; processing map; RECRYSTALLIZATION;

D O I：

10.1016/S1006-706X(14)60180-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The hot deformation behavior of F6NM stainless steel was investigated by hot compression test in a Gleeble-1500D thermal-mechanical simulator. The flow strain-stress curves were obtained and the corresponding metallographic observation of this steel under different deformation conditions was also carried out. This steel exhibited dynamic recrystallization (DRX) in the temperature range of 1273-1473 K and the strain rate range of 0. 01-0. 1 s(-1). The activation energy for hot deformation was determined to be 457. 91 kJ/mol, and the hot deformation equations were also established. The flow instability zone was determined and could be divided into two regions. The first one was located in the temperature range of 1173-1348 K and the strain rate range of 0. 056-10 s(-1), while the second one is in the temperature range of 1398-1448 K and the strain rate range of 1. 25-10 s(-1). In the end, the optimum conditions for hot working were provided.

引用

页码：1035 / 1041

页数：7

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