ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2009, Vol. 30 ›› Issue (5): 65-67.

• 组织和性能 • 上一篇    下一篇

40Mn2V非调质钢热变形再结晶的研究

方剑1,2,邹喜洋2,谢凯意2,袁泽喜1   

  1. 1. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉 430081 ;
    2. 湖南衡阳华菱钢管(集团)有限公司技术中心,衡阳 421001;
  • 收稿日期:2009-04-01 出版日期:2009-10-01 发布日期:2022-11-18
  • 作者简介:方 剑(1980-),男,在读博士研究生,油套管产品研发。

A Study on Recrystallization of Non-Quenched-Tempered Steel 40Mn2V during Thermal Deformation

Fang Jian1,2 , Zou Xiyang2 , Xie Kaiyi2 , Yuan Zexi1   

  1. 1. Key Lab for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081 ;
    2. Technical Center, Hengyang Hualing Steel Tube (Group) Co Ltd, Hengyang 421001 ;
  • Received:2009-04-01 Published:2009-10-01 Online:2022-11-18

摘要: 采用Gleeble-1500热模拟机测得40Mn2V微合金化非调质钢(%:0.38C、1.48Mn、0.12V)Φ90 mm管坯在800~1 000℃、变形速率0.5~2.0 s-1时的真应力-应变曲线,并研究了该钢的动态再结晶行为。结果表明,40Mn2V钢的动态再结晶激活能Qd为382.21 kJ/mol,通过动态再结晶图得出,因子Z>2.621×1015时,40Mn2V钢动态再结晶难以完成,当因子Z>2.014×1017时,该钢动态再结晶难以发生。

关键词: 非调质钢, 管坯, 热变形, 动态再结晶

Abstract: True stress-strain curves of 690 mm tube blank of microalloying non-quenched-tempered steel 40Mn2V (% :0.38C, 1.48Mn, 0.12V) with defonnation rate 0.5~2.0 s-1 at 800~1000 °C have been measured by Gleeble-1500 thermal simulator to study the dynamic recrystallization behavior of the steel. Results show that the dynamic recrystallization activation energy Qd of steel 40Mn2V is 382.21 kJ/mol ; it is obtained by dynamic recrystallization figure that it is difficult to complete the dynamic recrystallization of steel 40Mn2V as factor Z >2. 621 x 1015, and occurrence of the dynamic recrystallization of steel is difficult as factor Z >2. 014 x 1017.

Key words: Non-Quenched-Tempered Steel, Tube Blank, Thermal Defonnation, Dynamic Recrcystallization