Effect of Hot Rolled Cooling Process on Structure and Properties of Nb-Ti Microalloy Dual Phase Steel

陈连生; 那顺桑; 狄国标; 张洪波; 王月香; 刘振宇; 刘相华; 何舒星

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Effect of Hot Rolled Cooling Process on Structure and Properties of Nb-Ti Microalloy Dual Phase Steel

更新时间：2026-01-21

- Effect of Hot Rolled Cooling Process on Structure and Properties of Nb-Ti Microalloy Dual Phase Steel
- Special Steel Vol. 28, Issue 3, Pages: 10-12(2007)
- 作者机构：
  
  1. 轧制技术及连轧自动化国家重点实验室(东北大学),沈阳,110004
  2. 河北理工大学冶金与能源学院,唐山,063009
  3. 唐山国丰钢铁有限公司,唐山,063000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：07 November 2006，
  
  Online First：31 January 2023，
  
  Published：31 January 2007
- 稿件说明：
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陈连生, 那顺桑, 狄国标, et al. Effect of Hot Rolled Cooling Process on Structure and Properties of Nb-Ti Microalloy Dual Phase Steel[J]. Special Steel, 2007, 28(3): 10-12.
DOI：

陈连生, 那顺桑, 狄国标, et al. Effect of Hot Rolled Cooling Process on Structure and Properties of Nb-Ti Microalloy Dual Phase Steel[J]. Special Steel, 2007, 28(3): 10-12. DOI：

摘要

研究了热轧后空冷(800-850℃→750℃)+水冷(750℃→300～180℃)的两段式和水冷(782℃→760℃)+空冷(760℃→713℃)+水冷(713℃→414℃)三段式冷却方式对双相钢(％:0.08C、1.02Mn、0.22Si、0.02Nb、0.01Ti)组织和机械性能的影响。结果表明

采用两段式冷却方式可得到铁素体+分散的板条马氏体组织

并使铁素体尺寸达5.5μm

钢的屈服强度为345～365 MPa

抗拉强度为565～575 MPa、屈强比为0.60～0.65

优于三段式冷却方式轧制的双相钢。

Abstract

The effect of hot rolled plate air cooling(800~850℃ to750℃)+ water cooling(750 ℃ to 300～180 ℃)two stage cooling mode and water cooling(782℃ to760℃)+ air cooling(760℃ to713 ℃)+ water cooling (713 ℃ to 414 ℃)three stage cooling mode on structure and mechanical properties of dual steel 0.08C

1.02Mn

0.22Si

0.02Nb

0.01Ti has been studied. Results showed that 5.5 μm ferite + dispersed lath martensite structure could be got by two stage cooling mode

and yield strength of steel was 345～365 MPa

tensile strength 565～575 MPa

yield strength-tensile strength ratio 0.60~0.65 which were better than that by three stage cooling mode.

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