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Grain Boundary Segregation and Precipitation Processes in Iron and Nickel Base Alloys

Published online by Cambridge University Press:  26 February 2011

Ernest L. Hall  and
Clyde L. Briant
Ernest L. Hall
Affiliation:
GE Corporate Research and Development Center, PO Box 8, Schenectady, NY 12301
Clyde L. Briant
Affiliation:
GE Corporate Research and Development Center, PO Box 8, Schenectady, NY 12301
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Abstract

In many commercial iron and nickel base alloys used in structural applications, complicated grain boundary chemistry changes can occur during the heat treatments that these materials experience during fabrication or service. These chemistry changes can be associated with the segregation of solute or impurity elements to the boundaries, or with solid state precipitation processes occurring at the boundaries. Auger electron spectroscopy and analytical electron microscopy are useful tools for the quantitative examination of these phenomena. In this paper, experimental studies of the thermodynamics and kinetics of segregation and precipitation processes at grain boundaries in Fe and Ni base alloys are reviewed. Site competition between segregants, and changes in the type of grain boundary precipitation, as a function of time and temperature of annealing are described. The interaction between segregants and precipitates at grain boundaries is considered. These results are related to changes in the macroscopic properties of the material, including corrosion resistance, ductility, and strength.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 122: Symposium I – Interfacial Structure, Properties, and Design , 1988 , 237
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Ohtani, H., Feng, H.C., McMahon, C.J. Jr., and Mulford, R.A., Metall. Trans.A 7A, 87 (1976).Google Scholar
2. Boyle, C.J., Curran, R.M., Deforest, D.R., and Newhouse, D. L., Proc. ASTM 62, 1156 (1962).Google Scholar
3. Narayan, R. and Murphy, M.C., J. Iron Steel Inst. 211, 493 (1973).Google Scholar
4. Briant, C.L. and Ritter, A.M., Acta metall. 32, 2031 (1984).Google Scholar
5. Bandyopadhyay, N., Briant, C.L., and Hall, E.L., Metall. Trans. A 16A, 721 (1985); 16A, 1333 (1985).Google Scholar
6. Briant, C.L., Acta metall. 35, 149 (1987).Google Scholar
7. Briant, C.L., Mulford, R.A., and Hall, E.L., Corrosion 31, 468 (1982).Google Scholar
8. Mulford, R.A., Hall, E.L., and Briant, C.L., Corrosion 39, 132 (1983).CrossRefGoogle Scholar
9. Hall, E.L. and Briant, C.L., Metall. Trans.A 15A, 793 (1984).Google Scholar
10. Briant, C.L., Metall. Trans.A 16A, 2061 (1985).Google Scholar
11. Briant, C.L., Scripta Metall. 21, 71 (1987).Google Scholar
12. Briant, C.L., Metall. Trans.A 18A 691 (1987).CrossRefGoogle Scholar
13. Hall, E. L. and Briant, C.L., Metall. Trans.A 16A, 1225 (1985).Google Scholar
14. Briant, C.L., O'roole, C.S., and Hall, E.L., Corrosion 42, 15 (1986).Google Scholar
15. Briant, C.L., Metall Trans.A, in press.Google Scholar
16. Aoki, K. and Izumi, O., J. Japan Inst. Metals 45, 1190 (1979).Google Scholar
17. Liu, C.T., White, C.L., and Horton, J.A., Acta metall. 33, 213 (1985).Google Scholar
18. Taub, A.I., Huang, S.C., and Chang, K.M., Metall. Trans.A 15A, 399 (1984).Google Scholar
19. Briant, C.L. and Hall, E.L., Corrosion 43, 525 (1987).Google Scholar
20. Briant, C.L. and Hall, E.L., Corrosion 43, 539 (1987).Google Scholar
21. Erhart, H. and Grabke, H.J., Metal Sci. 15, 401 (1981).Google Scholar
22. Yu, J. and McMahon, C.J. Jr., Metall Trans.A 11A, 291 (1980).Google Scholar
23. Briant, C.L., Acta metall. 31, 257 (1982).Google Scholar
24. Zener, C., J. Appl. Phys. 20, 950 (1949).Google Scholar
25. Brailsford, A.D. and Aaron, H.B., J. Appl. Phys. 40, 1702 (1969).Google Scholar
26. Hall, E.L. and Briant, C.L., in Interface Migration and Control of Microstructure, edited by Pande, C.S. et al. (ASM, Metals Park, Ohio, 1986) p. 65.Google Scholar
27. Briant, C.L. and Hall, E.L., Welding J., submitted for publication.Google Scholar
28. Lobl, H., Tuma, A., and Cizernova, M., Mem. Scient. Rev. Metall. 71, 271 (1974).Google Scholar
29. Briant, C.L. and Hall, E.L., Corrosion 43, 437 (1987).Google Scholar
30. Briant, C.L. and Taub, A.I., Acta Metall., in press.Google Scholar
31. Chang, K.M. and Hall, E.L., unpublished research.Google Scholar