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Site preference of alloying elements in Fe3Al-based alloys

Published online by Cambridge University Press:  31 January 2011

Xiao Dong Ni ,
Nan Xian Chen ,
Jiang Shen ,
Zu Qing Sun  and
Wang Yue Yang
Xiao Dong Ni
Affiliation:
Applied Physics Institute, University of Science and Technology Beijing, China
Nan Xian Chen
Affiliation:
Applied Physics Institute, University of Science and Technology Beijing, China
Jiang Shen
Affiliation:
Applied Physics Institute, University of Science and Technology Beijing, China
Zu Qing Sun
Affiliation:
Department of Material Science and Engineering, University of Science and Technology, Beijing, China
Wang Yue Yang
Affiliation:
Department of Material Science and Engineering, University of Science and Technology, Beijing, China
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Abstract

On the basis of the first principle interatomic potentials, the site preference of various alloying elements in Fe3Al were evaluated for Ti, Si, Ni, Mn, Mo, and Cr, respectively. The calculated results of the substitutional distribution were in good agreement with the experimental results. Moreover, the calculated results showed that H atoms in Fe3Al prefer to occupy the Fe-type octahedral interstice on the surface, which resulted in concentration of H atoms on the surface. Cr addition decreased the absorbability of Fe3Al-based alloys for H atoms and the force to drive H atoms segregating to surface. The concentration of H atoms on the surface can be decreased by Cr addition.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 2 , February 2001 , pp. 344 - 351
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1.Sykes, C. and Bampfylde, J., Iron, J., Steel Inst. 130, 389 (1934).Google Scholar
2.Morris, D.G. and Gunter, S., Acta Mater. 44, 2847 (1996).CrossRefGoogle Scholar
3.Mckamey, C.G., De Van, J.H., Tortorelli, P.F., and Sikka, V.K., J. Mater. Res. 6, 1779 (1991) and REFERENCES therein.CrossRefGoogle Scholar
4.Mckamey, C.G., Liu, J.A., and Liu, C.T., J. Mater. Res. 4, 1156 (1989).CrossRefGoogle Scholar
5.Sun, Z.Q., Huang, Y.D., Yang, W.Y, and Chen, G.L., in Solid-State Ionics III, edited by Nazri, G-A., Tarascon, J-M., and Armand, M. (Mater. Res. Soc. Symp. Proc. 288, Pittsburgh, PA, 1993), p. 885.Google Scholar
6.Sun, Z.Q., Huang, Y.D., Yang, W.Y., and Chen, G.L., Acta Metall. Sin. 29A, 354 (1993).Google Scholar
7.Yang, W.Y., Shen, L.Z., Huang, Y.D., Sun, Z.Q, Mao, W.M., Zhang, B.S., and Ye, C.T., Acta Metall. Sin. (Chin. Ed.) 32 799 (1996).Google Scholar
8.Carlsson, A.E., Gelart, C.D., and Ehrenreich, H., Philos. Mag. A 41, 241 (1980).CrossRefGoogle Scholar
9.Xie, Q. and Chen, N.X., Phys. Rev. B 51, 15856 (1995).CrossRefGoogle Scholar
10.Liu, S.J. and Chen, N.X., J. Phys.: Condens. Matter. 5, 4381 (1993).Google Scholar
11.Chen, N.X., Phys. Rev. Lett. 64, 1193 (1990);CrossRefGoogle Scholar
Chen, N.X. and Ren, G.B., Phys. Rev. B 45, 8177 (1992).CrossRefGoogle Scholar
12.Chen, N.X., Li, M., and Liu, S.J., Phys. Lett. A 195, 135 (1994).CrossRefGoogle Scholar
13.Chen, N.X., Chen, Z.D., and Wei, Y.C., Phys. Rev. E 55, R5 (1997).Google Scholar
14.Zhang, W.Q., Xie, Q., Ge, X.J., and Chen, N.X., J. Appl. Phys. 82, 578 (1997).CrossRefGoogle Scholar
15.Rose, J.M., Smith, J.R., Guinea, F., and Ferrante, J., Phys. Rev. B 29, 2963 (1984).CrossRefGoogle Scholar
16.Bragg, W.L. and Williams, E.J., Proc. R. Soc. London A145, 699 (1969).Google Scholar
17.Nelder, J.A. and Mead, R., Comput. J. 7, 308 (1965).CrossRefGoogle Scholar
18.Okamoto, H. and Beck, P.A., Metall. Trans. 2, 569 (1971).CrossRefGoogle Scholar
19.Lakshmi, N., Venugopalan, K., and Varma, J., Phys. Rev. B 47, 14054 (1993).CrossRefGoogle Scholar
20.Mendiratta, M.G., Ehlers, S.K., Chatterjee, D.K., and Lipsitt, H.A., Metall. Trans. A18, 283 (1987).CrossRefGoogle Scholar
21.Liu, C.T. and Mckamey, C.G., in High Temperature Aluminides and Intermetallics, edited by Whang, S.H., Liu, C.T., Pope, D.P., and Stiegler, J.O. (TMS, Warrendale, PA, 1990), p. 133.Google Scholar
22.Liu, C.T., McKamey, C.G., and Lee, E.H., Scr. Metall. 24, 385 (1990).CrossRefGoogle Scholar
23.Speidel, M.P., in Hydrogen Damage, edited by Beachem, C.D. (ASM, Metals Park, OH, 1977), p. 329.Google Scholar
24.Gest, R.J. and Troiano, A.R., Corrosion 30, 274 (1974).CrossRefGoogle Scholar