Search

Article

x

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

Directional growth of monotectic alloy with and without shear flow

Wang Jian-Yuan Chen Chang-Le Zhai Wei Jin Ke-Xin

Directional growth of monotectic alloy with and without shear flow

Wang Jian-Yuan, Chen Chang-Le, Zhai Wei, Jin Ke-Xin
PDF
Get Citation
Metrics
  • Abstract views:  2289
  • PDF Downloads:  713
  • Cited By: 0
Publishing process
  • Received Date:  27 November 2009
  • Accepted Date:  08 December 2009
  • Published Online:  15 October 2010

Directional growth of monotectic alloy with and without shear flow

  • 1. School of Science, Northwestern Polytechnical University, Xi'an 710129, China

Abstract: The directional growth process of para-dichlorobenzene and succinonitrile (DCB-SCN) monotectic alloy is realized under static condition and in presence of shear flow. The experimental results show that, with the increase of pulling rate, the DCB phase exhibits faceted growth while the monotectic structure undergoes a transition in which "separated liquid and solid phases-aligned fibrous composite structure-droplet dispersion in solid matrix" take place. When shear flow is applied, perturbation and fluctuation appear at each growing crystal plane. In the meantime, the fibrous spacing is larger compared with those under the same pulling rate without flow. However, the spacing and pulling rate also follow the relationship λV0.5=C. In the formation process of droplet dispersion structure, shear flow enhances the nucleation rate of second liquid drops and hinder the growth and interaction of second liquid droplets at the solid-liquid interface, leading to the refinement of the final droplet dispersion structure.

Reference (12)

Catalog

    /

    返回文章
    返回