Structure and Properties of a Ti-IF Steel Hot-Rolled in Ferrite Region

景财年; 王作成; 韩福涛; 张文平; 衣彦宏

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Structure and Properties of a Ti-IF Steel Hot-Rolled in Ferrite Region

更新时间：2026-01-21

- Structure and Properties of a Ti-IF Steel Hot-Rolled in Ferrite Region
- Special Steel Vol. 27, Issue 2, Pages: 23-24(2006)
- 作者机构：
  
  1. 山东建筑工程学院材料系,济南,250014
  2. 山东大学材料科学与工程学院,济南,250061
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：14 September 2005，
  
  Online First：27 February 2023，
  
  Published：27 February 2006
- 稿件说明：
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景财年, 王作成, 韩福涛, et al. Structure and Properties of a Ti-IF Steel Hot-Rolled in Ferrite Region[J]. Special Steel, 2006, 27(2): 23-24.
DOI：

景财年, 王作成, 韩福涛, et al. Structure and Properties of a Ti-IF Steel Hot-Rolled in Ferrite Region[J]. Special Steel, 2006, 27(2): 23-24. DOI：

摘要

试验研究了含0.007%磷的普通Ti-IF(无间隙原子)钢(0.004 5%C-0.07%Ti)和含0.080%磷的高强度Ti-IF钢(0.005 2%C-0.08%Ti)24 mm板在800680℃铁素体区经4道次热轧成3 mm板

再经750℃3h退火后的组织、二相粒子和机械性能。试验结果表明

普通Ti-IF钢的拉伸强度为270 MPa

延伸率为45%

塑性应变比r值1.309

高强度Ti-IF钢的拉伸强度为315 MPa

延伸率44%

r值1.098。两钢板为再结晶铁素体组织

钢板中心组织较边部粗大

但在高强度Ti-IF钢中有FeTiP二相粒子析出。

Abstract

The structure

secondary phase precipitates and mechanical properties of 3 mm plates of 0.0045C-0.07Ti traditional Ti-IF steel contained 0.007P and 0.0052C-0.08Ti high strength Ti-IF steel contained 0.080P

which rolled by 4 pass in ferrite region between 800 ℃ and 680 ℃ from 24 mm plate slab

then annealed at 750℃ for 3 h

have been tested and studied. The results showed that the tensile strength of traditional Ti-IF steel was 270 MPa

the elongation 45% and the plastic strain ratio - r value 1.309

while the tensile strength of high strength Ti-IF steel was 315 MPa

the elongation 44% and the r value 1.098.The stucture of plates of both steels was recrystallized ferrite of which at center was coarser than that near surface

but there were secondary phase precipitates FeTiP in the high strength Ti-IF steel.

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