Abstract
Solid -state phase equilibria in the Fe-Co system are investigated using the Cluster Variation Method (CVM) in the irregular tetrahedron approximation in the bcc lattice and in the regular tetrahedron approximation in the fcc lattice. Calculations are performed in the quaternary Fe+ Fe− Co+ Co− by considering both chemical and magnetic interactions. The A2/B2 order/disorder transition and the α/γ transition agree well with the experimental data in the literature. The composition dependence of the Curie temperatures for bcc and fcc alloys as predicted here are also presented.
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References
T.Nishizawa and K. Ishida, Co-Fe, in: Phase Diagrams of Binary Iron Alloys, A.S.M. Int., USA (1993).
H. Ackermann, G. Inden, and R. Kikuchi, Tetrahedron approximation of the cluster variation method for bcc alloys, Acta Metall, 37:1 (1989).
R. Kikuchi, D. De Fontaine, M. Murakami, and T. Nakamura, Ternary phase diagram calculations - II Examples of clustering and ordering systems, Acta Metall, 25:207 (1977).
C. Colinet, G. Inden, and R. Kikuchi, CVM calculation of the phase diagram of bccFe-Co-Al, Acta Metall Mater., 41:1109 (1993).
A.T. Dinsdale, SGTE data for pure elements, Calphad, 15, 4:317, (1991).
G. Inden an d W.O. Meyer, Approximate determination of the Curie temperature s of bcc Fe-Co alloys, Z Metal., 66:725 (1975).
P.J. Lawrence and P.L. Rossiter, Chemical and magnetic interactions in fcc Fe-Ni alloys using the cluster variation method, J. Phys. F: Met. Phys., 16:543 (1986).
A.S. Normanton, P.E. Bloomfíeld, F.R. Sale, and B.B. Argent, A calorimetric study of iron-cobalt alloys, Met. Sci, 9:510 (1975).
H. Stuart and N. Ridley, Lattice parameters and Curie-point anomalies of iron-cobalt alloys, Brit. J. Appl. Phys., 2:485 (1969).
A.F. Guillermet, Critical evaluation of the thermodynamic properties of the iron-cobalt system, High Temp.- High Press., 19:477 (1987).
H. Masumoto, On a new transformation of cobalt and the equilibrium diagrams of nickel-cobalt and ironcobalt, Tohoku Imperial University Science Report, 1st ser., 15:450 (1926).
Y. Nakamura, M. Shiga, and S. Santa, Invar behavior of face-centered cubic FeCo alloys precipitated from copper, J. Phys. Soc. Jpn., 26:210 (1969).
W.C. Ellis and E.S. Greiner, Equilibrium relations in the solid state of the iron-cobalt system, Trans. A.S.M., 29:415 (1941).
J.H. Andrews and C.G. Nicholson, The iron-cobalt system, First Report of the Alloy Steels Research Committee, (1936).
H. Asano, Y. Bando, N. Nakanishi, and S. Kachi, Order-disorder transformation of Fe-Co alloys in fine particles, Trans. Jpn. Inst. Met, 8:180 (1967).
J.A. Oyedele and M.F. Collins, Composition dependence of the order-disorder transition in iron-cobalt alloys, Phys. Rev. B, 16:3208 (1977).
W.A. Fisher, K. Lorenz, H. Fabritius, and D. Schlegel, Examination of the alpha-gamma transformation in very pure binary alloys of iron with molybdenum, vanadium, tungsten, niobium, tantalum, zirconium and cobalt, Arch. Eisenhüttenwes., 41:489 (1970).
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Colinet, C., Antoni-Zdziobek, A. (2000). CVM Calculation of the Solid-State Equilibria in the Fe-Co Phase Diagram. In: Meike, A., Gonis, A., Turchi, P.E.A., Rajan, K. (eds) Properties of Complex Inorganic Solids 2. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1205-9_20
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DOI: https://doi.org/10.1007/978-1-4615-1205-9_20
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