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A Study of the Processing and Compositional Variables on the Microstructural Development and Oxidation Characteristics of Rapidly Solidified NiAlCo Alloys

Published online by Cambridge University Press:  01 January 1992

M.L. Stewart  and
P.B. Aswath
M.L. Stewart
Affiliation:
University of Texas at Arlington, Department of Mechanical and Aerospace Engineering, Materials Science and Engineering Program, Arlington, Tx.
P.B. Aswath
Affiliation:
University of Texas at Arlington, Department of Mechanical and Aerospace Engineering, Materials Science and Engineering Program, Arlington, Tx.
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Abstract

Oxidation tests were performed isothermally at 1000° C on chill block melt spun metallic ribbons with alloy compositions consisting of Ni(46-50 at%), Al(31-33 at%), Co( 17-20 at%) and Hf(0-1 at%). The oxidation rates were calculated and the microstructure was examined. Results indicated the difference in microstructural and oxidation characteristics could largely be attributed to the differences in the superheat of the melt. There was no indication that hafnium retarded grain growth. The oxidation behavior of two of the ribbons exhibited a logarithmic rate law.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 1007
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

[1] Pank, D.R., Master thesis, Penn. State, 1988.Google Scholar
[2] Meyers, M.A. and Chawla, K.K., Mechanical Metallurgy. (Prentice-Hall, Inc., New Jersey, 1984), pp. 283, 538.Google Scholar
[3] Liu, C.T. and Steigler, J.O., Science, 226, 636 (1984).Google Scholar
[4] Varin, R.A. and Winnicka, M.B., presented at the 5th International Symp. on Plasticity of Metals and Alloys, Prague, 1990.Google Scholar
[5] Locci, I.E. and Noebe, R.D., NASA Technical Paper No. 101450, 1989.Google Scholar
[6] Locci, I.E., Noebe, R.D., Moser, J.A., Lee, D.S. and Nathal, M., in High-Temperature Ordered Intermetallic Alloys III. (Mater. Res. Soc. Symp., 133, 1988), 639.Google Scholar
[7] Hemker, K.J. and Glasgow, T.K., Journal of Material Science 22, 798 (1987).Google Scholar
[8] Hebsur, M.G. and Locci, I.E., NASA Technical Paper No. 100264, 1988.Google Scholar
[9] Uhlig, H.H. and Revie, R.W., Corrosion and Corrosion Control, (John Wiley and Sons, New York, 1985), p. 187.Google Scholar
[10] Carrasco, J.L., Adeva, P. and Aballe, M., Oxidation of Metals, 33, 1 (1990).Google Scholar
[11] Cabrera, V.L. and Maple, M.B., Oxidation of Metals, 32, 207 (1989).Google Scholar