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Thermodynamic assessment of the Co-Mo system

  • Basic And Applied Research
  • Published:
Journal of Phase Equilibria

Abstract

Experimental thermochemical and phase diagram data for the Co-Mo system were assessed. A consistent thermodynamic description, using a Redlich-Kister model for the solution phases and sublattice and line-compound models for the intermetallics, was obtained, and it agreed well with the critically evaluated experimental data. Several variations of the sublattice model for the σ and μ phases were compared with the traditional models used for these phases in other systems. Measured data indicate an abrupt decrease of the terminal Mo solubility in the fcc (Co) phase with decreasing temperature. This behavior was reproduced well by inclusion of the magnetic contribution to the Gibbs energy of the fcc phase. Addition of the magnetic term also led to the prediction of a fcc (Co) miscibility gap, and a high-temperature stability region of the paramagnetic cph (Co) phase.

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References

  1. U. Raydt and G. Tammann, Z. Anorg. Chem., Vol 83, 1913, p 246–252

    Article  Google Scholar 

  2. T. Takei, Kinzoku-No-Kenkyu, Vol 5, 1928, p 364–384

    Google Scholar 

  3. W. Köster and W. Tonn, Z. Metallkde., Vol 24, 1932, p 296–299

    Google Scholar 

  4. W.P. Sykes and H.F. Graff, Trans. ASM, Vol 23, 1935, p 249–285

    Google Scholar 

  5. O. Redlich and A.T. Kister, Ind. Eng. Chem., Vol 40, 1948, p 345–348

    Article  Google Scholar 

  6. A. Metcalfe, Trans. AIME, Vol 197, 1953, p 357–364

    Google Scholar 

  7. K.J. Tauer and R.J. Weiss, Phys. Rev., Vol 100, 1955, p 1223–1224

    Article  ADS  Google Scholar 

  8. J.B. Forsyth and M. D’Alte da Veiga, Acta Crystallogr., Vol 16, 1963, p 509–512

    Article  Google Scholar 

  9. T.J. Quinn and W. Hume-Rothery, J. Less-Common Met., Vol 5, 1963, p 314–324

    Article  Google Scholar 

  10. V.N. Drobyshev, T.N. Rezukhina, and L.A. Tarasova, Russ. J. Phys. Chem., Vol 39, 1965, p 70–73

    Google Scholar 

  11. W. Krajewski, J. Kruger, and H. Winterhager, Cobalt, Vol 48, 1970, p 120–128

    Google Scholar 

  12. C.P. Heijwegen and G.D. Rieck, J. Less-Common Met., Vol 34, 1974, p 309–314

    Article  Google Scholar 

  13. W. Gust, B. Predel, and S.N. Mehra, Mater. Sci. Eng., Vol 21, 1975, p 131–138

    Article  Google Scholar 

  14. I. Katayama, M. Aoki, and Z. Kozuka, Nippon Kinzoku Gakkai-Shi, Vol 39, 1975, p 1210–1214

    Google Scholar 

  15. P.J. Spencer and F.H. Putland, J. Chem. Thermodyn., Vol 7, 1975, p 531–536

    Article  Google Scholar 

  16. H.L. Lukas, E.-Th. Henig, and B. Zimmermann, Calphad, Vol 1, 1977, p 225–236

    Article  Google Scholar 

  17. M. Hillert and M. Jarl, Calphad, Vol 2, 1978, p 227–238

    Article  Google Scholar 

  18. L. Kaufman and H. Nesor, Calphad, Vol 2, 1978, p 81–108

    Article  Google Scholar 

  19. T.N. Rezukhina and T.A. Kashina, J Chem. Thermodyn., Vol 10, 1978, p 279–288

    Article  Google Scholar 

  20. L. Brewer, R.H. Lamoreaux, R. Ferro, R. Marazza, and K. Girgis, Molybdenum: Physico-Chemical Properties of Its Compounds and Alloys. Atomic Energy Review, International Atomic Energy Agency, Vienna, 1980, Special Issue No. 7, p 123–127, p 231–234

    Google Scholar 

  21. G. Inden, Physica, Vol 103B, 1981, p 82–100

    Google Scholar 

  22. T. Takayama, M.Y. Wey, and T. Nishizawa, Trans. J. Inst. Met., Vol 22, 1981, p 315–325

    Google Scholar 

  23. B. Sundman and J. Agren, J. Phys. Chem. Solids, Vol 42, 1981, p 297–301

    Article  ADS  Google Scholar 

  24. A. Fernández Guillermet, Calphad, Vol 6, 1982, p 127–140

    Article  Google Scholar 

  25. S. Hertzman and B. Sundman, Calphad, Vol 6, 1982, 67–80

    Article  Google Scholar 

  26. G. Inden, Bull. Alloy Phase Diagrams, Vol 2, 1982, p 412–422

    Article  Google Scholar 

  27. J.-O. Andersson, Calphad, Vol 7, 1983, p 305–315

    Article  Google Scholar 

  28. O. Kubaschewski and T. Hoster, Z. Metallkde., Vol 74, 1983, p 607–609

    Google Scholar 

  29. B. Sundman, B. Jansson, and J.-O. Andersson, Calphad, Vol 9, 1985, p 153–190

    Article  Google Scholar 

  30. J.-O. Andersson and B. Sundman, Calphad, Vol 11, 1987, p 83–92

    Article  Google Scholar 

  31. P. Gustafson, Metall. Trans. A, Vol 18, 1987, p 175–188

    Google Scholar 

  32. A. Fernández Guillermet and J.-O. Andersson, Calphad, Vol 12, 1988, p 9–23

    Article  Google Scholar 

  33. A. Fernández Guillermet, Metall. Trans. A, Vol 20A, 1989, p 935–955

    Google Scholar 

  34. W. Huang, Z. Metallkde., Vol 81, 1990, p 397–404

    Google Scholar 

  35. U.R. Kattner, unpublished work, 1990

  36. A.T. Dinsdale, Calphad, Vol 15, 1991, p 317–425

    Article  Google Scholar 

  37. W.M. Huang, Calphad, Vol 15, 1991, p 195–208

    Article  Google Scholar 

  38. N. Dupin and I. Ansara, J. Phase Equilibria, Vol 14, 1993, p 451–456

    Article  Google Scholar 

  39. B. Predel, in Landolt-Börnsten: Phase Equilibria, Crystallographic and Thermodynamic Data of Binary Alloys, Group IV, Vol 5c, Springer-Verlag, Berlin, 1993, p 318–321

    Google Scholar 

  40. G.C. Coelho, S.G. Fries, H.L. Lukas, P. Majewski, J.M. Zelaya Bejarano, S. Gama, C.A. Ribeiro, and G. Effenberg, Proc. K. Schulze Symp. on Process. and Appl. of High Purity Refractory Metals and Alloys, 1993, TMS, 1994, p 51–70

  41. A. Bolcavage and U.R. Kattner, J. Phase Equilibria, Vol 17, 1996, p 92–100

    Article  Google Scholar 

  42. Y. Du and R. Schmid-Fetzer, J. Phase Equilibria, Vol 17, 1996, p 311–324

    Article  Google Scholar 

  43. I. Ansara, T.G. Chart, A. Fernández Guillermet, F.H. Hayes, U.R. Kattner, D.G. Pettifor, N. Saunders, and K. Zeng, Calphad, Vol 21, 1997, p 171–218

    Article  Google Scholar 

  44. K.C. Hari Kumar, Katholieke Universiteit Leuven, private communication, 1997, cited in [97Ans]

  45. A. Kusoffsky and B. Jansson, Calphad, Vol 21, 1997, p 321–333

    Article  Google Scholar 

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Authors and Affiliations

  1. Metallurgy Division, National Institute of Standards and Technology, 100 Bureau Dr., Stop 8555, 20899, Gaithersburg, MD

    A. Davydov & U. R. Kattner

  2. Department of Chemical Engineering, University of Florida, 32611, Gainesville, FL

    A. Davydov

Authors
  1. A. Davydov
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  2. U. R. Kattner
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Davydov, A., Kattner, U.R. Thermodynamic assessment of the Co-Mo system. JPE 20, 5–16 (1999). https://doi.org/10.1361/105497199770335893

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  • DOI: https://doi.org/10.1361/105497199770335893

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