Effect of Rolling Process on Structure, Texture and Properties of X80 Pipeline Steel

韩乐; 孙昊; 任慧平; 王海燕; 金自力

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Effect of Rolling Process on Structure, Texture and Properties of X80 Pipeline Steel

更新时间：2026-01-21

- Effect of Rolling Process on Structure, Texture and Properties of X80 Pipeline Steel
- Special Steel Vol. 33, Issue 2, Pages: 62-64(2012)
- 作者机构：
  
  1. 内蒙古科技大学材料与冶金学院,包头,014010
  2. 北京科技大学材料科学与工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：27 October 2011，
  
  Online First：20 October 2022，
  
  Published：20 October 2012
- 稿件说明：
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韩乐, 孙昊, 任慧平, et al. Effect of Rolling Process on Structure, Texture and Properties of X80 Pipeline Steel[J]. Special Steel, 2012, 33(2): 62-64.
DOI：

韩乐, 孙昊, 任慧平, et al. Effect of Rolling Process on Structure, Texture and Properties of X80 Pipeline Steel[J]. Special Steel, 2012, 33(2): 62-64. DOI：

摘要

利用环境扫描电子显微镜对X80管线钢(/%:0.043C、0.25Si、1.86Mn、0.085Nb、0.001 Ti、0.028Al、0.002 7N)的显微组织进行了观察

并借助于X射线衍射仪和电子背散射衍射技术

分析了管线钢组织与晶粒织构取向的特点。结果表明

{112}〈110〉、{110}〈110〉取向增加、小角度晶界比率提高

使管线钢的落锤撕裂面积增大

韧性提高;降低终轧温度、提高冷却速度

能够得到较多的针状铁素体

对落锤撕裂性能是有利的。

Abstract

Observation of microstructure of X80 pipeline steel (/% : 0.043C

0.25Si

1.86Mn

0.085Nb

0.00lTi

0.028Al

0.0027N) has been carried out by using environmental scanning electron microscope

and characteristics of structure and grain-texture orientation of the pipeline steel are analyzed by X-ray diffraction ( XRD) and electron backscatter diffraction ( EBSD) technique. Results show that with increasing

{112}〈11

0〉、{110}〈110〉

orientation and small-angle boundary ratio

the pipeline steel's drop weight tear test ( DWTT) shearing area ratio enlarges and the toughness of steel increases； with decreasing finishing rolling temperature and increasing cooling rate after rolling

it is a- vailable to get more acicular ferrite and favlurable to DWTT performance.

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