Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-27T01:32:55.828Z Has data issue: false hasContentIssue false
  • English
  • Français

Grain Growth Impediment of Fe-Based Nanocomposites During Heat Treatment at Elevated Temperature

Published online by Cambridge University Press:  15 February 2011

B. Huang ,
R.J. Perez  and
E.J. Lavernia
B. Huang
Affiliation:
Department of Chemical and Biochemical Engineering and Materials Science, University of California, Irvine, California, 92717-2575, U.S.A.
R.J. Perez
Affiliation:
Department of Chemical and Biochemical Engineering and Materials Science, University of California, Irvine, California, 92717-2575, U.S.A.
E.J. Lavernia
Affiliation:
Department of Chemical and Biochemical Engineering and Materials Science, University of California, Irvine, California, 92717-2575, U.S.A.
Get access

Abstract

Cryogenic ball milling of Fe-10 wt.%Al in liquid argon is shown to produce a nanocrystalline microstructure with high thermal stability against grain growth. The experimental evidence suggests that this stability may originate from the presence of fine γ-Al2O3 particles which pin the Fe grain boundaries. In contrast, Fe3O4 particles formed during cryomilling of Fe in liquid nitrogen were not able to impede grain growth during consolidation at 823 K. The interactions between the γ-Al2O3 particles and the grain boundaries during growth may be described by Gladman's theory. Additional stabilization against grain growth may have been provided by the presence of Al at the Fe grain boundaries. Following annealing at 1223 K, the grain size of the Fe-10 wt.%Al powders cryomilled in liquid argon was 13.3 ± 7.9 nm, but it exceeded 1700 nm following annealing at 1373 K. The loss of nanocrystalline structure may be attributed to the Ostwald ripening of γ-Al2O3 particles, resulting in abnormal grain growth.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 400: Symposium E – Metastable Metal-Based Phases and Microstructures , 1995 , 37
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

references

1. Bourell, D. L. and Kaysser, W.A, Metall. Trans.A, 25A, 677 (1994).Google Scholar
2. Gleiter, H., Prog. Mater. Sci., 33 (4), 223 (1989).Google Scholar
3. Birringer, R., Gleiter, H., Klein, H. P., and Marquardt, P., Phys. Letts, 102A, 365 (1984).Google Scholar
4. Luton, M. J., Jayanth, C. S., Disko, M. M., Matras, S., and Vallone, J.: Multicomponent Ultrafine Microstructures, edited by McCandlish, L. E., Polk, D. E., Siegel, R. W., and Kear, B. H., Materials Research Society Symposium Proceedings, Pittsburgh P.A., 132, 79 (1989).Google Scholar
5. Huang, B., Vallone, J., and Luton, M. J., NanoStructured Materials, 5(6), 631 (1995).Google Scholar
6. Susegg, O., Helium, E. Olsen, A., and Luton, M. J., Phil. Mag. A, 68(2), 367 (1993).Google Scholar
7. Tsuchiya, K., Ph.D. Dissertation, Department of Materials Science and Engineering, Northwestern University (1991), p. 36.Google Scholar
8. Aikin, B. J. M., Dickerson, R. M., Jayne, D. T., Farmer, S., and Whittenberger, J. D., Scripta. Metall., 30, 119(1994).Google Scholar
9. Perez, R. J., Huang, Benlih, Laveraia, E. J., Proceedings of Processing and Properties of Nanocrystalline Materials, TMS Fall Meeting, Cleveland (1995) in press.Google Scholar
10. Lau, M. L., Huang, Benlih, Perez, R. J., Nutt, S. R., and Lavernia, E. J., Proceedings of Processing and Properties of Nanocrystalline Materials, TMS Fall Meeting, Cleveland (1995) in press.Google Scholar
11. Zener, C., quoted by Smith, C. S., Trans. Met. Soc. A.I.M.E., 175, 15 (1949).Google Scholar
12. Gladman, T., Recrystallization and Grain Growth of Multi-phase and Particle Containing Materials Proceedings of the First Riso Inter. Symp. on Metall. and Mails. Sci., edited by Hansen, N., Jones, A. R., and Letters, T., Fyen Stiftsbogtrykker a-s (1980), p. 183.Google Scholar
13. Cullity, B. D., Elements of X-ray Diffraction, second edition, Addison-Wesley Publishing Company, Inc.(1978), p. 88.Google Scholar
14. Smithells, C. J., Metals Reference Book, fifth edition, Butterworths (1976), p. 206.Google Scholar
15. Hillert, M., Acta Metall., 13, 227 (1965).Google Scholar
16. Gladman, T., Proc. Roy. Soc., A294, 298 (1966).Google Scholar
17. Schaffer, G. B., Loretto, M. H., Smallman, R. E., and Brooks, J. W., Acta Metall., 37(9), 2511 (1989).Google Scholar
18. Martin, J. W. and Doherty, R. D., Stability of Microstructure in Metallic Systems, Cambridge University Press, New York (1976), p. 202.Google Scholar
19. Gladman, T., JOM, 9, 21 (1992).Google Scholar
20. Dromsky, J. A., Lenel, F. V. and Ansell, G. S., Trans. Met. Soc. AIME, 224, 236 (1962).Google Scholar
21. Oriani, R. A., Acta Metall., 12, 1399 (1964).Google Scholar
22. Footner, P. K. and Alcock, C. B., Metall. Trans., 3, 2633 (1972).Google Scholar
23. Fultz, B., Hong, L.B., Gao, Z.Q., and Bansal, C.: Synthesis and Processing of Nanocrystalline Powder, edited by Bourell, D.L., The Minerals, Metals and Materials Society, Warrendale, PA (1996) p. 249.Google Scholar