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 17 Issue 4
Aug.  2010
数据统计

分享

计量
  • 文章访问数:  376
  • HTML全文浏览量:  110
  • PDF下载量:  12
  • 被引次数: 0
Ling Wang, Yi-jun Yao, Bin Liu, Bo-ying Zhong,  and Jian-xin Dong, Effect of cooling rate on the phase transformation and stability of the mushy zone during the solidification of Waspaloy, Int. J. Miner. Metall. Mater., 17(2010), No. 4, pp. 464-469. https://doi.org/10.1007/s12613-010-0342-4
Cite this article as:
Ling Wang, Yi-jun Yao, Bin Liu, Bo-ying Zhong,  and Jian-xin Dong, Effect of cooling rate on the phase transformation and stability of the mushy zone during the solidification of Waspaloy, Int. J. Miner. Metall. Mater., 17(2010), No. 4, pp. 464-469. https://doi.org/10.1007/s12613-010-0342-4
引用本文 PDF XML SpringerLink

Effect of cooling rate on the phase transformation and stability of the mushy zone during the solidification of Waspaloy

  • 通讯作者:

    Ling Wang    E-mail: sjzhwl@126.com

  • Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) were used to study the microstructure, microsegregation, and fluid flow tendency of the superalloy Waspaloy in the mushy zone, which had been solidified at different cooling rates. The investigation was accompanied with the calculation of Rayleigh numbers. It is found that Ti is the main segregating element and the content of Ti is the highest in the final liquid at the cooling rates of 3–6℃/min. The eta phase (η) precipitate presented in the residual liquid at the cooling rates higher than 6 ℃/min is responsible for the fluctuations in the curves of Ti content. The dendrite arm spacing is found to markedly decrease with the increase of cooling rate. The maximum relative Rayleigh number occurs at 10–20℃ below the liquidus temperature at a cooling rate of 1℃/min, where the mushy zone is most unstable and fluid flow is most prone to occur.
  • Effect of cooling rate on the phase transformation and stability of the mushy zone during the solidification of Waspaloy

    + Author Affiliations
    • Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) were used to study the microstructure, microsegregation, and fluid flow tendency of the superalloy Waspaloy in the mushy zone, which had been solidified at different cooling rates. The investigation was accompanied with the calculation of Rayleigh numbers. It is found that Ti is the main segregating element and the content of Ti is the highest in the final liquid at the cooling rates of 3–6℃/min. The eta phase (η) precipitate presented in the residual liquid at the cooling rates higher than 6 ℃/min is responsible for the fluctuations in the curves of Ti content. The dendrite arm spacing is found to markedly decrease with the increase of cooling rate. The maximum relative Rayleigh number occurs at 10–20℃ below the liquidus temperature at a cooling rate of 1℃/min, where the mushy zone is most unstable and fluid flow is most prone to occur.
    • loading

    Catalog


    • /

      返回文章
      返回