Acta Metallurgica Sinica (English Letters) ›› 2011, Vol. 24 ›› Issue (1): 1-8.DOI: 10.11890/1006-7191-111-1

• 研究论文 •    下一篇

Zener-Hollomon 参数对Fe-3%Si热变形组织的影响

安丰辉   

  1. 东北大学
  • 收稿日期:2010-04-12 修回日期:2010-10-12 出版日期:2011-02-25 发布日期:2011-02-25
  • 通讯作者: 安丰辉

Effect of Zener-Hollomon parameter on deformation microstructure in Fe-3%Si alloy

Fenghui AN, Yuhui SHA, Fang ZHANG,  Liang ZUO   

  1. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University,Shenyang 110819, China
  • Received:2010-04-12 Revised:2010-10-12 Online:2011-02-25 Published:2011-02-25
  • Contact: Yuhui SHA

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Abstract: Hot deformation of Fe-3%Si alloy within the temperature range of 1073--1473 K and strain rate range of 0.01--5 s-1 was carried out by compression test. Optical microscopy (OM), electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM) were used to characterize the deformation microstructure on various scales. Dynamic recovery is the dominant softening mechanism under all experimental conditions. A dynamic recovery region and partial dynamic recrystallization region can be distinguished according to Zener-Hollomon parameter (Z) based on OM observation. Furthermore, the quantitative description of subgrain size and boundary misorientation has been set up as a function of Zener-Hollomon parameter.

Key words: Fe-3%Si, Hot deformation, Microstructure, Zener-Hollomon parameter