Behavior of Dynamic Recrystallization of Microalloying Non-Quenched and Non-Tempered Steel C38N2

谭利; 詹肇麟; 刘攀; 魏元生; 雍岐龙; 包耀宗

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Behavior of Dynamic Recrystallization of Microalloying Non-Quenched and Non-Tempered Steel C38N2

更新时间：2026-01-21

- Behavior of Dynamic Recrystallization of Microalloying Non-Quenched and Non-Tempered Steel C38N2
- Special Steel Vol. 33, Issue 4, Pages: 50-52(2012)
- 作者机构：
  
  1. 昆明理工大学,昆明,650093
  2. 钢铁研究总院,北京,100081
  3. 长城汽车股份有限公司,保定,071000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：14 January 2012，
  
  Online First：25 October 2022，
  
  Published：25 October 2012
- 稿件说明：
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谭利, 詹肇麟, 刘攀, et al. Behavior of Dynamic Recrystallization of Microalloying Non-Quenched and Non-Tempered Steel C38N2[J]. Special Steel, 2012, 33(4): 50-52.
DOI：

谭利, 詹肇麟, 刘攀, et al. Behavior of Dynamic Recrystallization of Microalloying Non-Quenched and Non-Tempered Steel C38N2[J]. Special Steel, 2012, 33(4): 50-52. DOI：

摘要

针对微合金化非调质钢热轧过程的变形特征

通过Gleeble-3800热模拟试验机研究了Nb-Ti-V非调质钢C38N2(/%:0.40C、0.52Si、1.42Mn、0.010P、0.047S、0.028V、0.025 Ti、0.022Nb)在950～1 150℃

变形速率0.1～10 s-1变形量60%

单道次压缩时的奥氏体动态再结晶过程

计算得出C38N2钢的动态再结晶晶粒尺寸模型和动态再结晶状态图。结果表明

C38N2钢变形温度越高

变形速率越低

则发生动态再结晶的储蓄能越小

动态再结晶越易发生。C38N2钢的动态再结晶激活能Q

=294.905 kJ/mol。

Abstract

According to the deformation characteristics of microalloying non-quenched and non-tempered steel during hot rolling process

the austenite dynamic recrystallization process of Nb-Ti-V non-quenched and non-tempered steel C38N2 (/%: 0. 40C

0. 52Si

1. 42Mn

0. 010P

0. 047S

0. 028V

0. 025Ti

0. 022Nb) in single pass compression with strain rate 0. 1 ~ 10 s~' and deformation 60% at 950 ~ 1 150 Y is studied by using Gleeble-3800 thermal simulation machine. The dynamic recrystallization state diagram and dynamic recrystallization grain size model for steel C38N2 are obtained by calculation. Results show that for steel C38N2 the higher deformation temperature and lower strain rate

the lower cumulative energy Q

to occur dynamic recrystallization and the more easily to carry out the dynamic recrystallization. The activation energy for Q

dynamic rec

rystallization of steel C38N2 is 294. 905 kJ/mol.

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