Effect of Cold-Rolling Reduction on Structure and Mechanical Properties of Nb-Ti Microalloying IF Steel

冯岩青; 王福明

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Effect of Cold-Rolling Reduction on Structure and Mechanical Properties of Nb-Ti Microalloying IF Steel

更新时间：2026-01-21

- Effect of Cold-Rolling Reduction on Structure and Mechanical Properties of Nb-Ti Microalloying IF Steel
- Special Steel Vol. 33, Issue 1, Pages: 65-68(2012)
- 作者机构：
  
  1. 包钢技术中心,包头,014010
  2. 北京科技大学冶金与生态工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：15 August 2011，
  
  Online First：21 September 2022，
  
  Published：21 September 2012
- 稿件说明：
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冯岩青, 王福明. Effect of Cold-Rolling Reduction on Structure and Mechanical Properties of Nb-Ti Microalloying IF Steel[J]. Special Steel, 2012, 33(1): 65-68.
DOI：

冯岩青, 王福明. Effect of Cold-Rolling Reduction on Structure and Mechanical Properties of Nb-Ti Microalloying IF Steel[J]. Special Steel, 2012, 33(1): 65-68. DOI：

摘要

试验研究了Nb-Ti微合金化无间隙原子(IF)钢(/%:0.006C、O.005Si、0.15Mn、0.008P、0.006S、0.039A1、0.01Nb、0.048 Ti、0.003 4N)在实验4辊冷轧机由3.98 mm热轧机冷轧至0.4mm(变形量40%～90%)过程组织和力学性能的变化。结果表明

随着冷轧变形量的增加

Nb-Ti微合金化IF钢组织中晶粒逐渐变为细小且纤维化

第二相粒子趋于沿轧制方向排列;钢的硬度、屈服强度、抗拉强度均增加

伸长率下降。变形量在75%和77%时出现低的屈强比

并可获得好的综合力学性能。

Abstract

The change of structure and mechanical properties of Nb-Ti microalloying IF steel （/%: 0.006C

0. 005Si

0. 15Mn

0. 008P

0. 006S

0. 039Al

0. 01Nb

0. 048Ti

0.003 4N） during cold rolling process from 3. 98 mm hot rolled plate cold rolling to 0. 4 mm sheet （ deformation 40% to 90% ） by a four cold-rolling mill in laboratory has been tested and studied. Results show that with increasing cold-rolling reduction ratio the grains of Nb-Ti microalloying IF steel gradually decrease and flat

and the secondary phase particles are more arranged to orientate rolling direction

and the hardness

yield and tensile strength of steel increase while the elongation of steel decreases. With deformation 75% and 77% the yield strength-tensile strength ratio is lowest

and the comprehensive mechanical properties of steel could be gotten.

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