Abstract
The NbAl3 intermetallic compound was prepared two different ways:first, by the classical induction-melting technique; the end product is acoarse-grain massive compound, including cracks and pores. Second, bymechanically activated annealing process (M2AP); the end product is afine-grain, powder of submicron crystallites. The oxidation behavior in airunder atmospheric pressure over the temperature range 500–1350°Cwas studied for each material in order to determine the influence of theNbAl3 microstructure on the oxidation mechanism. In all cases,the massive compound does not form the expected compact alumina, protectivescale. In the lower temperature range, the “pest” phenomenonoccurs. No grain disintegration was evidenced by oxidation of the M2APNbAl3 powder despite the high number of crystallites forming onegrain. This is a good argument with expected behavior for a massive materialproduced from the M2AP precursor by powder metallurgy processing.
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REFERENCES
T. B. Massalski, H. Okamoto, P. R. Subramanian, and L. Kacprzak, eds., Binary Aluminum Alloy Phase Diagrams (ASM International, Materials Park, OH, 1990).
S. Hanada, Current Opinion Solid State Mater. Sci. 2, 279 (1997).
S. V. Raj, M. Hebsur, I. E. Locci, and J. Doychak, J. Mater. Res. 7, 3219 (1992).
J. H. Schneibel, P. F. Becher, and J. A. Norton, J. Mater. Res. 3, 1272 (1988).
R. C. Svedburg, in Properties of High Temperature Alloys, Z. A. Foroulis and F. S. Pettit, eds. (Electrochemical Society, Pennington, NJ, 1976), p. 331.
R. A. Perkins, K. T. Chiang, and G. H. Meier, Scripta Metall. 22, 419 (1988).
M. Steinhorst and H. J. Grabke, Mater. Sci. Eng. A120, 55 (1989).
J. Doychak and M. G. Hebsur, Oxid. Met. 36, 113 (1991).
H. J. Grabke, M. Steinhorst, M. Brumm, and D. Wiemer, Oxid. Met. 35, 199 (1991).
J. Doychak, in Intermetallic Compounds, J. H. Westbrook and R. L. Fleisher, eds. (Wiley, New York, 1994), p. 977.
J. K. Berkowitz-Mattuck, P. E. Blackburn, and E. J. Felton, Trans. Metallur. Soc. AIME 233, 1093 (1965).
E. A. Aitken, in Intermetallic Compounds, J. H. Westbrook, ed. (Wiley, New York, 1967).
G. Raisson and A. Vignes, Rev. Phys. Appl. 5, 535 (1970).
H. J. Grabke, M. W. Brumm, M. Steinhorst, and B. Wagemann, J. Phys. IV 3, 385 (1993).
V. K. Tolpygo and H. J. Grabke, Scripta Metall. Mater. 28, 747 (1993).
R. J. Hanrahan, M. Puga-Lambers, E. S. Lambers, and S. P. Withrow, Elevated Temperature Coatings: Science and Technology II, N. B. Dahotre and J. M. Hampikian, eds. (The Minerals, Metals & Materials Society, Cleveland, Ohio, 1996), p. 209.
M. Abdellaoui and E. Gaffet, Acta Mater. 44, 725 (1996).
E. Gaffet, Mater. Sci. Forum 225-227, 429 (1996).
V. Gauthier, C. Josse, F. Bernard, E. Gaffet, and J. P. Larpin, Mater. Sci. Eng. A265, 117 (1999).
J. I. Langford, Proc. Intern. Conf. Accuracy Powder Diffraction II, NIST Gaithersburg, p. 110 (1992).
N. C. Halder and C. N. J. Wagner, Acta Crystallogr. 20, 312 (1966).
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Gauthier, V., Josse, C., Larpin, J.P. et al. High-Temperature Oxidation Behavior of the Intermetallic Compound NbAl3: Influence of Two Processing Techniques on the Oxidation Mechanism. Oxidation of Metals 54, 27–45 (2000). https://doi.org/10.1023/A:1004694327812
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DOI: https://doi.org/10.1023/A:1004694327812