Abstract
Phase relationships have been investigated in the Al-Ta system in the region between Al and AlTa2. Al-Ta alloys with compositions between 20 and 60 at. pct Ta were prepared using different processing routes. Following appropriate heat treatments, the alloys were characterized microstructurally, by quantitative electron probe microanalyses, X-ray diffraction, and differential thermal analysis. Based on our observations, a revised Al-Ta phase diagram is proposed. Significant revisions include the verification of Al3Ta as a line compound, the absence of a eutectic transformation in the region between Al3Ta and AlTa2, and the conclusive identification of a phase designated as AlTa near the equiatomic composition.
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H. Kimura, O. Nakano, T. Ohkoshi:Trans. Natl. Res. Inst. Met. (Jpn.), 1973, vol. 16 (1), pp. 1–6.
J.C. Schuster:Z. Metallkd., 1985, vol. 76, pp. 724–27.
H.A. Wilhelm and J.H. Witte: Report No. IS-500, United States Atomic Energy Commission, Ames, IA, 1962, p.M48.
W.W. Beaver, A.J. Stonehouse, and R.M. Paine: inPlansee Proceedings 1964 Metalwerk Plansee AG, Reutte/Tirol, Austria, 1965, pp. 682–700.
H.N Wotny, Brukl, and F. Benesovsky:Monatsh. Chem., 1961, vol. 92, pp. 116–27.
P. Kofstad: Technical Report AFML-TR-66-60 (AD 485023), Air Force Materials Laboratory, Wright-Patterson Air Force Base, Dayton, OH, 1966.
K. Girgis and A.B. Harnik:Naturwissenschaften, 1970, vol. 57 (5), p. 242.
A. Raman:Aluminum, 1965, vol. 41, pp. 318–19.
A. Magnelli, L. Edshammar, and T. Dagerhamn: Final Technical Report DA-91-591-EUC-2734 (AD 426927), University of Stockholm, Stockholm, Sweden, 1963.
G.V. Samsonov and A.P. Epik:Refractory Coatings, Metallurgiya, Moscow, 1973, p. 399.
K. Schubert, H.G. Meissner, A. Raman, and W. Rossteutscher:Naturwissenschaften, 1964, vol. 51 (12), p. 287.
P.W. Brown and F.J. Worzala:J. Mater. Sci., 1976, vol. 11, pp. 760–66.
V.M. Glazov, M.V. Maltsev, and U.D. Chistyakov:Izv. Akad. Nauk USSR, Otd. Tekhn. Nauk, 1956, vol. 4, pp. 131–36.
V.M. Glazov, G.P. Lazarev, and G. Korolkov:Metalloved. Term. Obrab. Met., 1959, vol. 10, pp. 48–50.
H.F. Spengler:Metallurgia, 1957, vol. 11, p. 384.
W. Buckman: Westinghouse Advanced Energy Systems, Large, PA, private communication, 1988.
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Subramanian, P.R., Miracle, D.B. & Mazdiyasni, S. Phase relationships in the Al-Ta system. Metall Trans A 21, 539–545 (1990). https://doi.org/10.1007/BF02671926
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DOI: https://doi.org/10.1007/BF02671926