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

Abstract:

Article Preview

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 et al., "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

Export:

Price:

$35.00

[1] C. L. Fu, J. Zou, Acta mater. 44 (1996) 1471.

[2] S. Prins, R. Arroyave, Z. K Liu. Acta Mater. 55 (2007) 4781.

[3] W. Wolf, R. Podloucky, P. Rogl, H. Erschbaumer, Intermetallics. 4 (1996) 201.

[4] J. L. Yang, C. Y. Xiao, S. D. Xia, K. L Wang, Phys. Rev. B. 46 (1992) 13709.

[5] C. Jiang , B. Gleeson, Scripta Mater. 55 (2006) 433.

[6] C. Y. Geng, C. Y. Wang, T. Yu, Acta Mater. 52 (2004) 5427.

[7] H. Okaniwa, D. Shindo, M. Yoshida, T. Takasugi, Acta mater. 47 (1999) (1987).

[8] Q. Yao, J. Sun, Y. Zhang, B. Jiang, Acta Mater. 54 (2006) 3585.

[9] E. J. D. Garba, R. L. Jacbos, J. Phys. F: Met. Phys. 16 (1986) 1485.

[10] Y. Nishino, C. Kumada, A. Asano, Scr. Mater. 36 (1997) 461.

[11] A. G. Khachaturyan, Theory of Structural Transformations in Solids (Wiley, New York, 1983).

[12] R. Poduri, L. Q. Chen. Acta Mater. 46 (1998) 1719.

[13] H. Zapolsky, C. Pareige, L. Marteau, D. Blavette, L. Q. Chen, Calphad. 25 (2001) 125.

[14] Y. S. Li, Z. Chen, Y. L. Lu, G. D. Xu, Chin. Phys. 16 (2007) 0854.

[15] C. Pareige, D. Blavette, Scr. Mater. 44 (2001) 243.

[16] A. V. Ruban, H. L. Skriver, Phys. Rev. B. 55 (1997) 856.

[17] Marcel H. F. Slutier, M. Takahashi, Y. Kawazoe, Acta Mater. 41 (1996) 209.

[18] T. Goto, A. Kashiwakura, H. Ido, J. Appl. Phys. 69(8), 15 (1991) 4636.

[19] J. H. Xu, T. Oguchi, A. J. Freeman, Phys. Rev. B. 35 (1987) 6940.

[20] T. Hong, T. J. Watson-Yang, A. J Freeman, T. Oguchi, J. H Xu, Phys. Rev. B. 41 (1990) 12462.

In order to see related information, you need to Login.