Continuous Cooling Transformation Behavior of Hot Deformation Austenite in 15MnVB Steel 160 mm x 160 mm Casting Billet

李世琳; 阮士朋; 王利军; 王宁涛

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Continuous Cooling Transformation Behavior of Hot Deformation Austenite in 15MnVB Steel 160 mm x 160 mm Casting Billet

更新时间：2026-01-21

- Continuous Cooling Transformation Behavior of Hot Deformation Austenite in 15MnVB Steel 160 mm x 160 mm Casting Billet
- Special Steel Vol. 40, Issue 3, Pages: 5-7(2019)
- 作者机构：
  
  1. 邢台钢铁有限责任公司技术中心,邢台,054027
  2. 河北省线材工程技术研究中心,邢台,054027
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：18 November 2018，
  
  Online First：16 May 2022，
  
  Published：16 May 2019
- 稿件说明：
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李世琳, 阮士朋, 王利军, et al. Continuous Cooling Transformation Behavior of Hot Deformation Austenite in 15MnVB Steel 160 mm x 160 mm Casting Billet[J]. Special Steel, 2019, 40(3): 5-7.
DOI：

李世琳, 阮士朋, 王利军, et al. Continuous Cooling Transformation Behavior of Hot Deformation Austenite in 15MnVB Steel 160 mm x 160 mm Casting Billet[J]. Special Steel, 2019, 40(3): 5-7. DOI：

摘要

采用Gleble-1500热模拟机测定了15MnVB钢在0.05～20℃/s冷速下连续冷却转变的膨胀曲线

结合光学显微镜的微观组织观察

测绘了该钢热变形奥氏体连续冷却转变过程中的动态CCT曲线;研究了其连续冷却转变产物的组织形态和硬度。实验结果表明

15MnVB钢在0.05-20℃/s冷却速率下的组织主要由铁素体+珠光体、铁素体+珠光体+贝氏体、铁素体+珠光体+贝氏体+马氏体、贝氏体+马氏体组成。

Abstract

By measuring the dilatometric curves of 15MnVB steel with cooling speed 0.05 ~20 ℃/s on Gleeble-1500 thermo-mechanical simulator

and combining with metallographic analysis

a CCT diagram of hot deformed austenite in continuous cooling transformation was obtained

and the products microstructure and hardness of the continuous cooling transformation occurring in steel 15MnVB was investigated. The results show that the microstructure of the steel consists of ferrite + pearlite

ferrite + pearlite + bainite

ferrite + pearlite + bainite + martensite and bainite + martensite at the cooling rate from 0.05℃/s to 20 ℃/s.

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