Influence of Vanadium on Hot Plasticity of Microalloying Heavy Rail Steel

刘霞; 史凤武; 王晓丽; 焦国利

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Influence of Vanadium on Hot Plasticity of Microalloying Heavy Rail Steel

更新时间：2026-01-21

- Influence of Vanadium on Hot Plasticity of Microalloying Heavy Rail Steel
- Special Steel Vol. 31, Issue 4, Pages: 26-27(2010)
- 作者机构：
  
  1. 包头钢铁职业技术学院,包头,014010
  2. 包钢技术中心,包头,014010
  3. 北京科技大学冶金与生态工程学院,北京,100083
  4. 包钢机制公司,包头,014010
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：27 February 2010，
  
  Online First：20 November 2022，
  
  Published：20 November 2010
- 稿件说明：
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刘霞, 史凤武, 王晓丽, et al. Influence of Vanadium on Hot Plasticity of Microalloying Heavy Rail Steel[J]. Special Steel, 2010, 31(4): 26-27.
DOI：

刘霞, 史凤武, 王晓丽, et al. Influence of Vanadium on Hot Plasticity of Microalloying Heavy Rail Steel[J]. Special Steel, 2010, 31(4): 26-27. DOI：

摘要

用Gleeble-1500D热模拟试验机研究了U71Mn钢(%:0.75C、1.20Mn)和U75V钢(%:0.75C、0.94Mn、0.05V、0.005Al)700～1300℃的高温塑性。结果表明

由于碳氮化钒在晶界和晶粒内部析出

加钒降低微合金化重轨钢的高温塑性

特别是第Ⅲ脆性区(850℃)的塑性。为防止铸坯裂纹出现

铸坯矫直温度应≥900℃。

Abstract

Hot plasticity of U71Mn steel(%:0.75C

1.20Mn) and U75V steel (%:0.75C

0.94Mn

0.05V

0.005Al) at 700~1300℃ has been studied by using Gleeble- 1500D thermo-simulation machine. Results show that as vanadium carbo-nitride precipitates at grain boundary and inside

the hot plasticity

especially the plasticity at Ⅲ brittle zone (850℃)

of microalloying heavy rail steel decreases by adding vanadium. The strengthening temperature of cast bloom should be ≥900 ℃ to prevent bloom crack forming.

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