东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (9): 987-990.DOI: -

• 论著 • 上一篇    下一篇

合金含量对热变形奥氏体组织演变的影响

朱丽娟;吴迪;赵宪明;   

  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 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-09-15 发布日期:2013-06-23
  • 通讯作者: Zhu, L.-J.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50334010)

Influence of alloying content on microstructure evolution of hot deformed austenite

Zhu, Li-Juan (1); Wu, Di (1); Zhao, Xian-Ming (1)   

  1. (1) State Key Laboratory of Rolling Technology and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-09-15 Published:2013-06-23
  • Contact: Zhu, L.-J.
  • About author:-
  • Supported by:
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摘要： 建立了低合金和微合金钢奥氏体再结晶动力学模型,并采用单道次和双道次压缩实验来验证Si-Mn钢和Nb-V钢模型中的参数,实验结果证明了模型的准确性.将该模型应用于宝钢2050热轧生产线来预测奥氏体晶粒尺寸在热轧过程中的变化,以及每一道次流变应力.结果表明,添加低合金和微合金元素都能抑制再结晶的发生和晶粒长大,使流变应力增高.

关键词: 组织性能预测, 动态再结晶, 静态再结晶, 流变应力, 合金元素

Abstract: The models of recrystallization kinetics are developed for the austenites in low alloy and microalloyed steel. Their exactness have been well tested by use of single/double pass compression to verify the parameters in the models for hot deformed Si-Mn steel and Nb-V steel. The models were applied to the 2050 hot rolling line in Baosteel to predict the evolution of austenite grain size and rheological stress at each pass during hot rolling, and the results showed that the addition of either low alloyed elements or microalloyed elements both retards dynamic/static recrystallization and austenite grain growth, thus increasing the rheological stress of austenite.

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