Effect of Nb- and V-Microalloying on Hot Workability of High Carbon Steel

刘平; 李峰; 陈爱梅; 史凤武

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Effect of Nb- and V-Microalloying on Hot Workability of High Carbon Steel

更新时间：2026-01-21

- Effect of Nb- and V-Microalloying on Hot Workability of High Carbon Steel
- Special Steel Vol. 29, Issue 6, Pages: 13-14(2008)
- 作者机构：
  
  包钢(集团)公司技术中心,包头,014010
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：22 May 2008，
  
  Online First：05 December 2022，
  
  Published：05 December 2008
- 稿件说明：
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刘平, 李峰, 陈爱梅, et al. Effect of Nb- and V-Microalloying on Hot Workability of High Carbon Steel[J]. Special Steel, 2008, 29(6): 13-14.
DOI：

刘平, 李峰, 陈爱梅, et al. Effect of Nb- and V-Microalloying on Hot Workability of High Carbon Steel[J]. Special Steel, 2008, 29(6): 13-14. DOI：

摘要

用Gleeble 1500D热模拟机试验了0.03%Nb、0.03%Nb-0.02%V和0.05%V微合金化0.75%～0.78%C高碳钢280 mm×380 mm铸坯上钻取的Φ10 mm×120 mm试样在1 300～800℃的断面收缩率和抗拉强度。结果表明

第1脆性区≥1 200℃和第3脆性区1 000～800℃V-钢的热塑性优于Nb-V钢和Nb钢。扫描电镜和能谱分析表明

Nb-钢铸坯存在Fe-Nb-C共晶体

加入V的Nb-V钢铸坯存在Fe-Nb共晶体。

Abstract

The reduction of area and tensile strength of Φ10 mm×120 mm specimen drilled and turned from 280 mm ×380 mm cast billet of0.03Nb

0.03Nb-0.02Vand 0.05VMicroalloyed 0.75~0.78C high carbon steel have been tested at 1300~800 ℃ by Cleeble 1500D thermal simulation machine.Results showed that the hot plasticity of V-steel in first brittle zone ≥1200'℃ and third brittle zone1000~800 ℃ was better than that of Nb-steel and Nb-V steel.It was indica- ted by scanning electron microscopy and energy spectrum analysis that Fe-Nb-C eutectic existed in cast billet of Nb- steel

and Fe-Nb eutectic existed in cast billet of Nb-V steel added V.

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