Abstract
The aim of the present investigation was resolution of certain obscure features of the Al-Mn phase diagram. The experimental approach was guided by assessment of the previous literature and modeling of the thermodynamics of the system. It has been shown that two phases of approximate stoichiometry “Al4Mn” (λ and μ) are present in stable equilibrium, λ forming by a peritectoid reaction at 693 ± 2 °C. The liquidus and stable equilibrium invariant reactions as proposed by Goedecke and Koester have been verified. A map has been made of the successive nonequilibrium phase transformations of as-splat-quenched alloys. Finally, the thermodynamic calculation of the phase diagram allows interpretation of complex reaction sequences during cooling in terms of a catalogue of all the metastable invariant reactions involving (Al), Al6Mn, λ, μ, ϕ, and Al11Mn4 phases.
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References
M. A. Taylor:Acta Metall., 1960, vol. 8, pp. 256–62.
T. Goedecke and W. Koester:Z. Metallkd., 1971, vol. 62, pp. 727–32.
E.H. Dix, W.L. Fink, and L. A. Willey:Trans. AIME, 1933, vol. 104, pp. 335–52.
H. W.L. Phillips:J. Inst. Metals, 1943, vol. 69, pp. 275–91.
H. Kono:J. Phys. Soc. Japan, 1958, vol. 13, pp. 1444–51.
A. J. J. Koch, P. Hokkeling, M. G. v. d. Steeg, and K. J. de Vos:J. Appl. Phys., 1960, vol. 31, pp. 75S-7S.
W. Koester and E. Wachtel:Z. Metallkd., 1960, vol. 51, pp. 271–80.
W. B. Pearson:Handbook of Lattice Spacings and Structures of Metals and Alloys, Pergamon, New York, NY, 1967, vol. 2.
R.J. Schaefer, D. Shechtman, W. J. Boettinger, and F. S. Biancaniello: National Bureau of Standards, Gaithersburg, MD, unpublished research, 1968.
A. J. McAlister, R. J. Schaefer, and F. S. Biancaniello: National Bureau of Standards, Gaithersburg, MD, unpublished research, 1968.
D. Shechtman, I. Blech, D. Gratias, and J. W. Cahn:Phys. Rev. Lett., 1984, vol. 53, p. 1951.
L. Bendersky, R.J. Schaefer, F.S. Biancaniello, W.J. Boettinger, M.J. Kaufman, and D. Shechtman:Scripta Met., 1985, vol. 19, pp. 909–14.
Yu. O. Esin, N. T. Bobrov, M. S. Petrushevskii, and P. V. Gel'd:Russ. J. Phys. Chem., 1973, vol. 47(8), pp. 1103–05.
G. I. Batalin, E. A. Beloborodova, V. A. Stukalo, and A.A. Chekhovskii:Sov. Prog. Chem., 1972, vol. 38, pp. 83–84.
P.D. Desai: “Thermodynamic Properties of Binary Al-Mn Alloy System,” CINDAS Report, 1985.
For a full assessment of the experimental data, see A. J. McAlister and J. L. Murray: “The Al-Mn (Aluminum-Manganese) System,”Bulletin of Alloy Phase Diagrams, in press.
O. Kubaschewski and G. Heymer:Trans. Farad. Soc., 1960, vol. 56, pp. 473–78.
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Murray, J.L., Mcalister, A.J., Schaefer, R.J. et al. Stable and metastable phase equilibria in the Al-Mn system. Metall Trans A 18, 385–392 (1987). https://doi.org/10.1007/BF02648798
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DOI: https://doi.org/10.1007/BF02648798