留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 22 Issue 10
Oct.  2015
数据统计

分享

计量
  • 文章访问数:  288
  • HTML全文浏览量:  78
  • PDF下载量:  10
  • 被引次数: 0
Rong-hua Zhang, Ze-an Zhou, Ming-wei Guo, Jian-jun Qi, Shu-hua Sun, and Wan-tang Fu, Hot deformation mechanism and microstructure evolution of an ultra-high nitrogen austenitic steel containing Nb and V, Int. J. Miner. Metall. Mater., 22(2015), No. 10, pp. 1043-1049. https://doi.org/10.1007/s12613-015-1166-z
Cite this article as:
Rong-hua Zhang, Ze-an Zhou, Ming-wei Guo, Jian-jun Qi, Shu-hua Sun, and Wan-tang Fu, Hot deformation mechanism and microstructure evolution of an ultra-high nitrogen austenitic steel containing Nb and V, Int. J. Miner. Metall. Mater., 22(2015), No. 10, pp. 1043-1049. https://doi.org/10.1007/s12613-015-1166-z
引用本文 PDF XML SpringerLink

Hot deformation mechanism and microstructure evolution of an ultra-high nitrogen austenitic steel containing Nb and V

  • 通讯作者:

    Wan-tang Fu    E-mail: wtfu@ysu.edu.cn

  • The flow curves of an ultra-high nitrogen austenitic steel containing niobium (Nb) and vanadium (V) were obtained by hot compression deformation at temperatures ranging from 1000℃ to 1200℃ and strain rates ranging from 0.001 s-1 to 10 s-1. The mechanical behavior during hot deformation was discussed on the basis of flow curves and hot processing maps. The microstructures were analyzed via scanning electron microscopy and electron backscatter diffraction. The relationship between deformation conditions and grain size after dynamic recrystallization was obtained. The results show that the flow stress and peak strain both increase with decreasing temperature and increasing strain rate. The hot deformation activation energy is approximately 631 kJ/mol, and a hot deformation equation is proposed. (Nb,V)N precipitates with either round, square, or irregular shapes are observed at the grain boundaries and in the matrix after deformation. According to the discussion, the hot working should be processed in the temperature range of 1050℃ to 1150℃ and in the strain rate range of 0.01 to 1 s-1.
  • Hot deformation mechanism and microstructure evolution of an ultra-high nitrogen austenitic steel containing Nb and V

    + Author Affiliations
    • The flow curves of an ultra-high nitrogen austenitic steel containing niobium (Nb) and vanadium (V) were obtained by hot compression deformation at temperatures ranging from 1000℃ to 1200℃ and strain rates ranging from 0.001 s-1 to 10 s-1. The mechanical behavior during hot deformation was discussed on the basis of flow curves and hot processing maps. The microstructures were analyzed via scanning electron microscopy and electron backscatter diffraction. The relationship between deformation conditions and grain size after dynamic recrystallization was obtained. The results show that the flow stress and peak strain both increase with decreasing temperature and increasing strain rate. The hot deformation activation energy is approximately 631 kJ/mol, and a hot deformation equation is proposed. (Nb,V)N precipitates with either round, square, or irregular shapes are observed at the grain boundaries and in the matrix after deformation. According to the discussion, the hot working should be processed in the temperature range of 1050℃ to 1150℃ and in the strain rate range of 0.01 to 1 s-1.
    • loading

    Catalog


    • /

      返回文章
      返回