Journal of Materials Science

, Volume 20, Issue 7, pp 2313–2322 | Cite as

The Ni3Al-Ni3Cr-Ni3Ru section of the Ni-Cr-Al-Ru system

  • S. Chakravorty
  • H. Hashim
  • D. R. F. West
Papers

Abstract

An investigation is reported of the 75 at% nickel section of the Ni-Cr-Al-Ru system at 1523 and 1273 K. Constitutional data obtained by electron probe microanalysis, X-ray diffraction and microscopical examination are presented as partial isothermal sections. At 1523 K, the major part of the section consists ofγ phase, while the aluminium-rich region contains aγ′ andγ+γ′ region; the extent of the solid solution of chromium and ruthenium inγ′ totals ~ 4 at%. The ruthenium-rich corner of the section shows a two-phase region consisting ofγ + ruthenium-rich solid solution. At 1273 K theγ′,γ+γ′ andγ + ruthenium regions increase in extent. Theγ/γ′ mismatch values in the equilibrated alloys studied lie in the range ~ −0.08 to −0.39%. Constitutional features of as-cast alloys are also reported.

Keywords

Nickel Chromium Solid Solution Ruthenium Major Part 

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References

  1. 1.
    C. W. Corti, D. R. Coupland andG. L. Selman,Platinum Met. Rev. 24 (1) (1980) 2.Google Scholar
  2. 2.
    Idem, in Proceedings of the Conference on Behaviour of High Temperature Alloys in Aggressive Environments (1979), Petten.Google Scholar
  3. 3.
    A. S. Darling andI. R. McLean, British Patent JX/5282/02, 50597/77.Google Scholar
  4. 4.
    R. G. Wing andI. R. McGill,Platinum Met. Rev. 25 (3) (1981) 2.Google Scholar
  5. 5.
    M. R. Jackson andJ. R. Rairden,Met. Trans. 8A (11) (1977) 1697.Google Scholar
  6. 6.
    E. J. Felten,Oxid. Met. 10 (1976) 23.Google Scholar
  7. 7.
    S. M. Merchant andM. R. Notis,Bull. Alloy Phase Diagrams to be published.Google Scholar
  8. 8.
    A. Taylor andR. W. Floyd,J. Inst. Met. 81 (1952–53) 451.Google Scholar
  9. 9.
    I. I. Kornilov andR. S. Mints,Akad. Nauk. SSSR, Izvest, Sektora Fiz-khimi. Analiza. Obschchei i. Neorg. Khimii 26 (1955) 62.Google Scholar
  10. 10.
    Idem, Zhur. Neorg. Khimi 3 (1958) 699.Google Scholar
  11. 11.
    N. Delanerulle andL. L. Seigle, SUNY at Stony Brook (1983) unpublished.Google Scholar
  12. 12.
    D. C. Tu, PhD thesis, SUNY at Stony Brook (1982).Google Scholar
  13. 13.
    B. B. Argent, C. W. Haworth andN. C. Oforka, University of Sheffield, private communication (1984).Google Scholar
  14. 14.
    S. Chakravorty andD. R. F. West,J. Mater. Sci. 19 (1984) 3574.Google Scholar
  15. 15.
    R. P. Elliott, “Constitution of Binary Alloys”, 1st Supplement (McGraw Hill, New York, 1965) pp. 54, 667.Google Scholar
  16. 16.
    F. A. Shunk, “Constitution of Binary Alloys”, 2nd Supplement (McGraw Hill, New York, 1969) pp. 40, 273, 277, 551.Google Scholar
  17. 17.
    E. Raub andD. Menzel,Z. Metallk. 52 (1961) 831.Google Scholar
  18. 18.
    I. I. Kornilov andK. P. Myasnikova,Izv. Akad. Nauk SSSR, Met i Gorn. Delo, 4 (1964) 159; Russ. Met. Mining4 (1964) 95.Google Scholar
  19. 19.
    N. I. Varich andA. N. Petrunina,Metally (Russ. Metall.) 2 (1979) 90.Google Scholar
  20. 20.
    W. Obrowski,Naturwissenschaften 47 (1960) 14.Google Scholar
  21. 21.
    A. Magneli, L. E. Edshammar, T. Dagerhamn andS. Westman, Final Technical Report No. 1 on contract DA-91-591-EUC-3134 (AD 451442) (1964) p. 6.Google Scholar
  22. 22.
    V. F. Tsurikov, E. M. Sokolovskaya andE. F. Kazakova,Vestnik Moskovskogo, Universiteta. Khimiya 35 (5) (1980) 512.Google Scholar
  23. 23.
    S. Chakravorty andD. R. F. West, to be published.Google Scholar
  24. 24.
    M. Hansen andK. Anderko, “Constitution of Binary Alloys”, 2nd edn. (McGraw Hill, New York, 1958) p. 541.Google Scholar
  25. 25.
    A. K. Shurin andG. P. Dmitrieva,Sb. Nauchn. Rabot Inst. Metallofiz., Akad. Nauk. Ukr. SSR 18 (1964) 170.Google Scholar
  26. 26.
    R. M. Waterstrat andJ. S. Kasper,Trans. AIME 209 (1957) 872.Google Scholar
  27. 27.
    S. Chakravorty andD. R. F. West,Met. Sci. 18 (1984) 207.Google Scholar
  28. 28.
    Idem, ibid. 17 (1983) 573.Google Scholar
  29. 29.
    J. K. Tien andS. M. Copley,Met. Trans. 2A (1971) 543.Google Scholar
  30. 30.
    J. K. Tien andR. P. Gamble,ibid. 3 (1972) 2157.Google Scholar
  31. 31.
    R. A. Mackay andL. J. Ebert,Scripta Metall. 17 (1983) 1217.Google Scholar

Copyright information

© Chapman and Hall Ltd 1985

Authors and Affiliations

  • S. Chakravorty
    • 1
  • H. Hashim
    • 1
  • D. R. F. West
    • 1
  1. 1.Department of Metallurgy and Materials ScienceImperial College of Science and TechnologyLondonUK

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