东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2009, Vol. 30 ›› Issue (12): 1731-1734.DOI: -

• 论著 • 上一篇    下一篇

变形速率对2205双相不锈钢形变诱导相变的影响

王月香;刘振宇;王国栋;江来珠;   

  1. 东北大学轧制技术及连轧自动化国家重点实验室;宝钢研究院不锈钢技术中心;
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2009-12-15 发布日期:2013-06-22
  • 通讯作者: Wang, Y.-X.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金重点项目(50734002)

Influence of deformation rate on strain-induced phase transition of 2205 duplex stainless steel

Wang, Yue-Xiang (1); Liu, Zhen-Yu (1); Wang, Guo-Dong (1); Jiang, Lai-Zhu (2)   

  1. (1) State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, China; (2) Stainless Steel Technology Center, Baosteel Research Institute, Shanghai 200431, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2009-12-15 Published:2013-06-22
  • Contact: Wang, Y.-X.
  • About author:-
  • Supported by:
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摘要： 通过单道次压缩热模拟试验,研究了2205双相不锈钢在热变形过程中组织组成相奥氏体相(γ)和铁素体相(δ)所占比例的变化情况.分析得到:2205双相不锈钢在热变形过程中存在奥氏体相和铁素体相之间的相互转变,且热变形过程中发生的两相之间的相互转变也是2205双相不锈钢热变形过程中的一种动态软化机制.变形速率对2205双相不锈钢热变形过程中发生的相转变的影响规律为:变形速率很小时,δ→γ的转变占较大比重;随着变形速率的升高,γ→δ所占比例增加.

关键词: 双相不锈钢, 单道次压缩实验, 变形速率, 动态软化机制, 形变诱导相变

Abstract: The change of phase proportion of the austenite (γ) and ferrite (δ) in the microstructure of 2205 duplex stainless steel during thermal deformation was investigated by single-pass reduction simulation. The results showed that there are not only the phase transition between austenite and ferrite but also a dynamic softening mechanism due to the transition during thermal deformation of the stainless steel. The influence of deformation rate on phase transition during thermal deformation was found in such a way that the δ&rarrγ transition is dominant if the deformation rate is very small, but the portion of γ&rarrδ transition increases with increasing deformation rate.

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