Influence of Rolling Deformation on Interlamellar Spacing of Pearlite in U75V Heavy Rail Steel

王晓丽; 宋波; 焦国利

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Influence of Rolling Deformation on Interlamellar Spacing of Pearlite in U75V Heavy Rail Steel

更新时间：2026-01-21

- Influence of Rolling Deformation on Interlamellar Spacing of Pearlite in U75V Heavy Rail Steel
- Special Steel Vol. 29, Issue 6, Pages: 52-54(2008)
- 作者机构：
  
  1. 北京科技大学冶金与生态工程学院,北京,100083
  2. 包头钢铁职业技术学院,包头,014010
  3. 包头钢铁公司机制公司,包头,014010
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：12 May 2008，
  
  Online First：09 December 2022，
  
  Published：09 December 2008
- 稿件说明：
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王晓丽, 宋波, 焦国利. Influence of Rolling Deformation on Interlamellar Spacing of Pearlite in U75V Heavy Rail Steel[J]. Special Steel, 2008, 29(6): 52-54.
DOI：

王晓丽, 宋波, 焦国利. Influence of Rolling Deformation on Interlamellar Spacing of Pearlite in U75V Heavy Rail Steel[J]. Special Steel, 2008, 29(6): 52-54. DOI：

摘要

U75V重轨钢铸坯尺寸为280 mm×380 mm

重轨轧材经14道次粗轧(BD1)、中轧(BD2)和CCS 6道次精轧(UR

、ER、UR

、UR

、EF、UF)而成。用扫描电镜测量了重轨钢各道次珠光体片层间距。结果表明

随重轨钢BD1E、BD2B、UR和UF道次变形量(面积压缩比)增加

重轨头部、腰部、底部和腿部的珠光体组织片层间距分别由0.512

0.414

0.493

0.452μm降至0.293

0.269

0.253

0.229μm

从而明显地提高重轨的力学性能。

Abstract

The cast bloom size for U75V heavy rail steel is 280 mm×380 mm

and the heavy rail products are produced with 14 passes rough rolling(BD1)- medium rolling(BD2)and CCS 6 passes finishing rolling(UR

UF).The interlamellar spacing of pearlite in heavy rail steel at different pass was measured by scanning electron microscope. Measured results showed that with increasing deformation(reduction ratio of sectional area)of BDIE

BD2B

UR and UF pass of heavy steel

the interlamellar spacing of pearlite in heavy rail section of head

web

track bottom and leg decreased respectively to 0.293 μm

0.269 μm

0.253 μm and 0.229 μm from original0.512 μm

0.414 μm

0.493 μm and 0.452 μm as a result to obviously increase mechanical properties of heavy rail.

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