The diffusion coefficients of Fe in Al have been suggested in these papers

The diffusion coefficients have been suggested in  this book and these papers:

Landolt_Bernstein, Numerical Data and Functional Relationships in Science and Technology. Group III:  Crystal and Solid State Physics 26

Diffusion in Solid Metals and Alloys, Ed. by H. Mehrer (Springer_Verlag, Berlin, 1990).

Matrix: iron (Fe), continued   Al

83A1  Akimova, LA., Mironov, V.M., Pokoyev, A.V.: Fiz. Met. Metalloved. 56 (1983) 1225; Phys. Met. Metallogr. (English Transl.) 56 (6) (1983) 175.

 Impurity diffusion in aluminum group metals [Ref. p. 203

Matrix: aluminum (Al), continued   Fe

 - 70A3 Alexander, W.B., Slifkin, L.M.: Phys. Rev. B 1 (1970) 3274.

- 70HI  Hood, G.M.: Philos. Mag. 21 (1970) 305.

- 87BI  Beke, D.L., Godeny, I., Szabo, I.A., ErdClyi, G., Kedves, F.J.: Philos. Mag. A 55 (1987) 425.

- 89B2 Becker, Ch., ErdClyi, G., Hood, G.M., Mehrer, H.: DIMETA-88. Diffusion in Metals and Alloys, F.J. Kedves, D.L. Beke (eds.), Defect and Diffusion Forum 66-69 (1989) 409.

The attached paper, with the cited references, seems to have valuable information specifically with regard to B2 FeAl.  The figures in this paper and the cited reference 23 in the paper seem to be important for your research.  I draw your attention to the last paragraph before conclusions.

Best,

Srinivasan 

Thank you sir.

Dear Malur Srinivasan Sir,

thank you so much. 

Dear Malur Srinivasan Sir,

Do you have any idea regarding activation energy for vacancy formation in FeAl?

Which one of the references is more rliable?

Mr. Alireza Valizade,

I have referred following article for my work:

T. Hehenkamp, P. Scholz, B. Köhler, and R. Kerl, “Vacancy formation and diffusion in FeAl alloys,” in Defect and Diffusion Forum, 2001, vol. 194, pp. 389–396.

You can also refer the paper suggeated by Mr. Malur Shrinivasan, which is also good one.

Good luck,

Vaibhav

http://www.sciencedirect.com/science/article/pii/S0261306914005287