Processing maps for hot working of HSLA pipeline steel

被引：2

作者：

Li, Ning ^{[1
]}

Kingkam, Wilasinee ^{[1
]}

Han, Renheng ^{[1
]}

Huang, Yao ^{[1
]}

Li, Yan ^{[1
]}

Zhu, Yanqing ^{[1
]}

Bao, Ziming ^{[1
]}

Zhang, Hexin ^{[1
]}

Zhao, Chengzhi ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Minist Educ, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2019年 / 6卷 / 12期

关键词：

HSLA pipeline steel; processing map; dynamic recrystallization; flow stress; metallurgy; metal forming and shaping; DEFORMATION-BEHAVIOR; HIGH-TEMPERATURE; FLOW-STRESS; MICROSTRUCTURE; ALLOY; EVOLUTION;

D O I：

10.1088/2053-1591/ab6768

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The hot deformation features of HSLA pipeline steel are researched in the temperature from 800 degrees C-1100 degrees C and strain rate from 0.001-10 s(-1) using isothermal compression tests. According to the variation of power dissipation efficiency with the temperature and strain rate, the hot working process map of HSLA pipeline steel was obtained. The power dissipation map of the HSLA pipeline steel exhibits three domains. The first area exists in the temperature from 885 degrees C-1100 degrees C and strain rate from 0.01-1 s(-1). The second domain occurs in the temperature from 800 degrees C-860 degrees C and strain rate from 0.012-1 s(-1). The third area occurs in the temperature from 800 degrees C-825 degrees C and strain rate from 0.001-0.008 s(-1). When the specimen was deformed at higher temperature and lower strain rate, the efficiency of the power dissipation is more than 0.3, which is considered suitable for DRX to occur and may be considered a feasible condition for hot working.

引用

页数：12

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