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

Segregation and interaction of rare earth and iron elements on grain boundaries in ZA27 alloys

Liu Gui-Li Li Rong-De

Segregation and interaction of rare earth and iron elements on grain boundaries in ZA27 alloys

Liu Gui-Li, Li Rong-De
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

Metrics
  • Abstract views:  2681
  • PDF Downloads:  640
  • Cited By: 0
Publishing process
  • Received Date:  17 October 2003
  • Accepted Date:  16 February 2004
  • Published Online:  05 May 2004

Segregation and interaction of rare earth and iron elements on grain boundaries in ZA27 alloys

  • 1. 沈阳工业大学材料学院,沈阳 110023

Abstract: The model of liquidphase of ZA27 cast alloy was set up in terms of the molecul ar dynamics simulation. The atomic structural models of the α phaseliquid int erf ace and the grain boundary of α phase with the coincidencesite lattice were c on structed by computer programming. The environmentsensitive embedding energy (E S E) of rare earth (or iron) atom in grain, on grain boundary and on α phaseliq uid interface was calculated by Recursion method. The bond order integrals (BOI) be tween Fe, RE atom and Al were also computed. The results show that RE and iron e lements are more stable on the α phaseliquid interface than in grain, which e xpl ains the fact of very small solid solubility of RE and iron elements in α phase , and the enrichment of RE and iron elements in the solid-liquid growth front whe n solidifying. This leads to the segregation of RE and iron atoms on the grain b oundaries and the formation of the complicated REcompounds.

Catalog

    /

    返回文章
    返回