Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-19T03:56:50.376Z Has data issue: false hasContentIssue false
  • English
  • Français

Study of Intermetallic FeAl—Alumina Wettability Affected by Microalloying Y and Nb

Published online by Cambridge University Press:  01 January 1992

Dong Xu ,
Dening Wang ,
Weimin Zhou ,
Hong Yang  and
Dongliang Lin (T. L. Lin)
Dong Xu
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
Dening Wang
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
Weimin Zhou
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
Hong Yang
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
Dongliang Lin (T. L. Lin)
Affiliation:
Department of Materials Science, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
Get access

Abstract

The effects of microalloying elements, Y(0.02at%, 0.04at% and 0.06at%) and Nb(0.2at%, 0.5at% and 0.8at%) on the wettability of intermetallic Fe-40A1 with polycrystalline α-Al2O3 were investigated experimentally by means of sessile drop method. The addition of 0.02at%Y and 0.04at%Y showed no significant effects on the wettability. However, the addition of 0.06at%Y improved the wettability in temperature range from 1673K to 1823K. The addition of different amount of Nb were not beneficial to the FeAl-Al2O3 wettability under conditions investigated. The SEM study of the shear fractured surfaces showed that the additions of Y and Nb coursed Al2O3 particles more adherent to FeAl matrix, compared with the case of pure Fe-40A1. The degree of adherence varied with the amount of Y and Nb. These phenomena are discussed in terms of interfacial reactions and interfacial bonding.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 817
Copyright
Copyright © Materials Research Society 1995

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. Liu, C. T., McKamey, C. G. and Lee, E. H., Scripta Metall. Mater. 24, 385(1990).Google Scholar
2. Draper, S. L., Gaydosh, D. J. and Nathal, M. V., J. Mater. Res. 5, 1976(1990).Google Scholar
3. Alman, D. E., and Stoloff, N. S. in Intermetallic Matrix Composites, edited by Anton, D. L., Martin, P. L., Miracle, D. B., and McMeeking, R. (Mater. Res. Soc. Symp. Proc. 194, Pittsburgh, PA, 1990)p31.Google Scholar
4. Misra, A. K., Metall. Trans. 21A, 441(1990).Google Scholar
5. Smith, M. A. and Pope, D. P., Mater. Sci. Eng. A145, 79(1991).Google Scholar
6. Nicholas, M., Forgan, R. R. D. and Poole, D. M., J. Mater. Sci. 3, 9(1968).Google Scholar
7. Mortensen, A., Mater. Sci. Eng. A135, 1(1991).Google Scholar
8. Xu, D., Wang, D. N. and Lin, T. L., to be published in Scripta Metall.Google Scholar
9. Nicholas, M. G., Mater. Sci. Forum 29, 127(1988).Google Scholar
10. Dean, J. A., Lange's Handbook of Chemistry, 13th ed. (McGraw-Hill Book Company, 1985).Google Scholar
11. Liu, Y. H., Ph. D. Thesis, Harbin Polytech. Univ., Harbin, PRC, 1989.Google Scholar