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Analysis of Vacancy Agglomeration Processes by Matusita’s Method for B2 FeAl

  • Kyosuke Yoshimi (a1), Masafumi Tsunekane (a2) and Kouichi Maruyama (a1)


In this study, the exothermic DSC peaks observed in rapidly-solidified Fe-44.9at.%Al ribbons and water-quenched Fe-48.5at.%Al single crystals were analyzed by Matusita’s method in order to discuss the kinetics of the agglomeration processes of supersaturated vacancies. Both the nucleation and morphological factors, n and m, respectively were approximately 3 for the rapidly solidified ribbons and were approximately 2 for the water-quenched single crystals. Based on the Matusita’s idea, the m values suggest the growth of 3-dimensional voids in the rapidly solidified ribbons and the growth of 2-dimensional dislocations loops in the single crystals due to the agglomeration of supersaturated vacancies. In addition, the n values suggest that the nuclei of voids and dislocation loops existed in as-quenched samples. These interpretations are in good agreement with the results of TEM observations.



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1. Ho, K. and Dodd, R.A., Scripta Metall. 12, 1055 (1978).
2. Kim, S.M., J. Phys. Chem. Solids 49, 65 (1988).
3. Würschum, R., Grupp, C. and Schaefer, H.E., Phys. Rev. Lett. 75, 97 (1995).
4. Paris, D., Lesbats, P. and Levy, J., Scripta Metall. 9, 1373 (1975).
5. Wever, D., Meurtin, M., Paris, D., Fourdeux, A. and Lesbats, P., J. Phys (Paris) C7, 332 (1977).
6. Kogachi, M. and Haraguchi, T., Mater. Sci. Eng. A230, 124 (1997).
7. Yoshimi, K., Hanada, S., Haraguchi, T., Kato, H., Itoi, T. and Inoue, A., Mater. Trans. 43, 2897 (2002).
8. Haraguchi, T., Yoshimi, K., Yoo, M.H., Kato, H., Hanada, S. and Inoue, A., Acta Mater. 52, 3751 (2005).
9. Morris, M.A., George, O. and Morris, D.G., Mater. Sci. Eng. A258, 99 (1998).
10. Yoshimi, K., Tsunekane, M., Nakamura, R., Yamauchi, A. and Hanada, S., Appl. Phys. Lett. 89, 073110 (2006).
11. Tsunekane, M., Yoshimi, K. and Maruyama, K., Acta Mater. 56, 3162 (2008).
12. Zaroual, S., Sassi, O., Aride, J., Bernardini, J. and Mayo, G., Mater. Sci. Eng. A279, 282 (2000).
13. Yang, Y. and Baker, I., in High-Temperature Ordered Intermetallic Alloys VIII, edited by George, E.P., Mills, M.J. and Yamaguchi, M., (Mater. Res. Soc. Proc. 552, Warrendale, PA, 1999) pp. KK8.22.1.
14. Yoshimi, K., Tsunekane, M. and Maruyama, K., Intermetallics 18, 1265 (2010)
15. Matusita, K., Komatsu, T. and Yokota, R., J. Mater. Sci. 19, 291 (1984).
16. Rivière, J.P., Zonon, H. and Grilhe, J., Phys. Stat. Sol. 16, 545 (1973).



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