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 18 Issue 2
Apr.  2011
数据统计

分享

计量
  • 文章访问数:  236
  • HTML全文浏览量:  62
  • PDF下载量:  21
  • 被引次数: 0
Jie Meng, Tao Jin, Xiao-feng Sun, and Zhuang-qi Hu, Surface recrystallization of a single crystal nickel-base superalloy, Int. J. Miner. Metall. Mater., 18(2011), No. 2, pp. 197-202. https://doi.org/10.1007/s12613-011-0422-0
Cite this article as:
Jie Meng, Tao Jin, Xiao-feng Sun, and Zhuang-qi Hu, Surface recrystallization of a single crystal nickel-base superalloy, Int. J. Miner. Metall. Mater., 18(2011), No. 2, pp. 197-202. https://doi.org/10.1007/s12613-011-0422-0
引用本文 PDF XML SpringerLink

Surface recrystallization of a single crystal nickel-base superalloy

  • 通讯作者:

    Tao Jin    E-mail: tjin@imr.ac.cn

  • The recrystallization behavior of a single crystal nickel-base superalloy was investigated by shot peening and subsequent annealing. Two kinds of recrystallization microstructures, which are intensively dependent on the annealing temperature, are shown in the nickel-base superalloy after shot peening and subsequent annealing. Surface recrystallized grains are obtained when the superalloy is annealed at solution treatment temperature. The nucleation of recrystallization originates from the dendritic core, where rapid dissolution of γ' particles occurs. Cellular recrystallization is observed after annealing at lower temperatures. Cellular structures induced by high diffusivity of the moving boundary and more γ' particles dissolution led by residual stress are developed from the surface region. Recrystallized kinetics of the shot-peened alloy annealed at 1050℃ accords with the Johnson-Mehl-Avrami-Kolmogorov equation. The low Avrami exponent is caused by the inhomogeneous distribution of stored energy, the decreasing of stored energy during recovery, and the strong resistance of boundary migration by γ' particles.
  • Surface recrystallization of a single crystal nickel-base superalloy

    + Author Affiliations
    • The recrystallization behavior of a single crystal nickel-base superalloy was investigated by shot peening and subsequent annealing. Two kinds of recrystallization microstructures, which are intensively dependent on the annealing temperature, are shown in the nickel-base superalloy after shot peening and subsequent annealing. Surface recrystallized grains are obtained when the superalloy is annealed at solution treatment temperature. The nucleation of recrystallization originates from the dendritic core, where rapid dissolution of γ' particles occurs. Cellular recrystallization is observed after annealing at lower temperatures. Cellular structures induced by high diffusivity of the moving boundary and more γ' particles dissolution led by residual stress are developed from the surface region. Recrystallized kinetics of the shot-peened alloy annealed at 1050℃ accords with the Johnson-Mehl-Avrami-Kolmogorov equation. The low Avrami exponent is caused by the inhomogeneous distribution of stored energy, the decreasing of stored energy during recovery, and the strong resistance of boundary migration by γ' particles.
    • loading

    Catalog


    • /

      返回文章
      返回