东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2007, Vol. 28 ›› Issue (10): 1369-1373.DOI: -

• 论著 •    下一篇

铌钒钛与含钛高强钢的高温变形行为

衣海龙;杜林秀;王国栋;刘相华;   

  1. 东北大学轧制技术及连轧自动化国家重点实验室;东北大学轧制技术及连轧自动化国家重点实验室;东北大学轧制技术及连轧自动化国家重点实验室;东北大学轧制技术及连轧自动化国家重点实验室 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-24 修回日期:2013-06-24 出版日期:2007-10-15 发布日期:2013-06-26
  • 通讯作者: Yi, H.-L.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2003AA33G010)

High-temperature deformation behavior of Nb/V/Ti-bearing and Ti-bearing HSLA rolled steels

Yi, Hai-Long (1); Du, Lin-Xiu (1); Wang, Guo-Dong (1); Liu, Xiang-Hua (1)   

  1. (1) State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-10-15 Published:2013-06-26
  • Contact: Yi, H.-L.
  • About author:-
  • Supported by:
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摘要： 在Gleeble 2000热模拟实验机及D450实验轧机上进行不同参数的单道次压缩及多道次淬火实验.研究表明,对铌钒钛高强钢,微合金元素铌、钒、钛的碳氮化物能有效抑制奥氏体的高温软化行为,经过6道次变形的奥氏体晶粒细化到8μm左右,其控轧工艺为未再结晶区的控制轧制.对含钛高强钢,微合金元素钛表现出相对较弱的抑制奥氏体再结晶效果,经过6道次变形后的奥氏体晶粒细化到11μm左右,其控轧工艺为再结晶区控制轧制.

关键词: HSLA钢材, 微合金元素, Nb, V, Ti, 奥氏体, 再结晶, 控制轧制

Abstract: The high-temperature deformation behavior of both Nb/V/Ti-bearing and Ti-bearing HSLA rolled steels was investigated, with the single-pass reduction conducted on the Gleeble 2000 thermomechanical simulator and multi-pass quenching on a D450 experimental rolling stand. The results showed that the softening is restricted by the carbonitrides of microalloying elements Nb, V and Ti in the HSLA steel and, after 6-pass reduction, the austenite grain size is down to 8 μm through grain refining, i.e., the controlled rolling process is not implemented in the recrystallization zone. However, the recrystallization effect by single Ti element is weaker in the HSLA-Ti steel where the austenite grain size is down to about 11 μm after 6-pass reduction, i.e., the controlled rolling process is in the recrystallization zone.

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