Paper Title:
Microscopic Phase Field Study on the Site Preference of Al in Ni3V: Coordination Geometry Effect
  Abstract

The site occupation behavior of Al in Ni3V phase with a DO22 structure in Ni75AlxV25-x alloy was studied using the microscopic phase-field model which is based on the microscopic diffusion equations. Attribute to the coordination geometry effects, the concentration of Al are non-equal on the two non-equivalent Ni sites, and Al prefers to occupy the Nisites. However, the Al does not prefer to occupy both of the two Ni sites, because the Al concentration on V site is intermediately between that on Niand Nisite. The calculated ordering energies suggest that the site preference of alloying elements are all energetic favorable.

  Info
Periodical
Edited by
Enhou Han, Guanghong Lu and Xiaolin Shu
Pages
149-153
DOI
10.4028/www.scientific.net/MSF.689.149
Citation
M. Y. Zhang, Z. Chen, X. L. Fan, Y. X. Wang, Y. L. Lu, "Microscopic Phase Field Study on the Site Preference of Al in Ni3V: Coordination Geometry Effect", Materials Science Forum, Vol. 689, pp. 149-153, 2011
Online since
June 2011
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$32.00
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