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Effect of Active Elements on the Oxidation Behaviour of Cr2O3-Formers

  • M. J. Bennett
  • D. P. Moon

Abstract

Active elements with a high affinity for oxygen, such as yttrium, cerium, lanthanum and other rare earths, have been known for half a century to improve the oxidation behaviour of high temperature alloys whose protection derives from the formation of Cr2O3 scales. It is now clear that the active elements can promote the formation of the protective scale, can reduce the rate of continuing scale growth and can inhibit scale failure processes. Various mechanisms, involving modifications to transport properties and mechanical behaviour of scales, have been proposed to explain the observed beneficial effects. These mechanisms will be reviewed in the light of available experimental evidence, including the dependence of protection upon the individual active element, its concentration and initial distribution and source (i.e. whether an alloying addition, oxide dispersion, coating or surface implant).

Keywords

Active Element Oxidation Behaviour Oxide Dispersion Scale Growth Parabolic Rate Constant 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    L.B. Pfeil: UK Patent No. 459848, 1937.Google Scholar
  2. 2.
    D.P. Moon: To be published in Mater. Sci. Technol., 1989.Google Scholar
  3. 3.
    D.P. Whittle and J. Stringer: Phil. Trans. R. Soc. Lond. A., 1980, 295, 309–329.CrossRefGoogle Scholar
  4. 4.
    T.N. Rhys-Jones, H.J. Grabke and H. Kudielka: Werkst. Korros., 1987, 38, 65–72.CrossRefGoogle Scholar
  5. 5.
    D.P. Whittle, M.E. El-Dahshan and J. Stringer: Corros. Sci., 1977, 17, 879–891.CrossRefGoogle Scholar
  6. 6.
    P.Y. Hou and J. Stringer: Oxid. Met., 1988, 29, 45–73.CrossRefGoogle Scholar
  7. 7.
    J. Stringer, B.A. Wilcox and R.I. Jaffee: Oxid. Met., 1972, 5, 11–47.CrossRefGoogle Scholar
  8. 8.
    P.Y. Hou and J. Stringer: Mater. Sci. Eng., 1987, 87, 295–302.CrossRefGoogle Scholar
  9. 9.
    M.J. Bennett, B.A. Bellamy, C.F. Knights, N. Meadows and N.J. Eyre: Mater. Sci. Eng., 1985, 69, 359.CrossRefGoogle Scholar
  10. 10.
    T.N. Rhys-Jones, H.J. Grabke and H. Kudielka: Corros. Sci., 1987, 27, 49–73.CrossRefGoogle Scholar
  11. 11.
    M.J. Bennett, G. Dearnaley, M.R. Houlton and R.W.M. Hawes: in ‘Ion implantation into metals’, (Ed. V. Ashworth et al.), 264–276; 1982, Oxford, Pergamon Press.Google Scholar
  12. 12.
    A. Atkinson and R.I. Taylor: in ‘Transport in non-stoichiometric compounds’, (ed. G. Simkovich et al.), 285–295; 1985, New York, Plenum Press.CrossRefGoogle Scholar
  13. 13.
    J.H. Park, W.E. King, N.L. Peterson and S.J. Rothman: in ‘Oxidation of metals and associated mass transport’, (ed. M.A. Dayananda et al.), 103–107; 1987, Warrendale, Penn., The Metallurgical Society Inc.Google Scholar
  14. 14.
    A. Atkinson: Rev. Mod. Phys., 1985, 57, 437–470.CrossRefGoogle Scholar
  15. 15.
    M.J. Bennett, H.E. Bishop, P.R. Chalker and A.T. Tuson: Mater. Sci. Eng., 1987, 90, 177–190.CrossRefGoogle Scholar
  16. 16.
    C.M. Cotell, G.J. Yurek, R.J. Hussey, D.F. Mitchell and M.J. Graham: Proc. Electrochem. Soc., 1988, 88-5, 268–277.Google Scholar
  17. 17.
    J.C. Pivin, C. Roques-Carmes, J. Chaumont and H. Bernas: Corros. Sci., 1980, 20, 947.CrossRefGoogle Scholar
  18. 18.
    K. Przybylski and G.J. Yurek: J. Electrochem. Soc., 1988, 135, 517–523.CrossRefGoogle Scholar
  19. 19.
    C.H. Yang, G.E. Welsch and T.E. Mitchell: Mater. Sci. Eng., 1985, 69, 351–357.CrossRefGoogle Scholar
  20. 20.
    M.J. Bennett, J.A. Desport, M.R. Houlton, P.A. Labun and J.M. Titchmarsh: Mater. Sci. Technol., 1988, 4, 1107–1113.Google Scholar
  21. 21.
    G.J. Yurek, K. Przybylski and A.J. Garratt-Reed: J. Electrochem. Soc., 1987, 134, 2643–44.CrossRefGoogle Scholar
  22. 22.
    C.H. Yang, P.A. Labun, G.E. Welsch, T.E. Mitchell and M.J. Bennett: J. Mater. Sci., 1987, 22, 449–458.CrossRefGoogle Scholar
  23. 23.
    A.T. Chadwick and R.I. Taylor: in Proc. 9th Int. Congr. on Metall. Corr., Toronto, 1984, 3, 381–387; Ottawa, National Research Council of Canada.Google Scholar
  24. 24.
    H. Nagai and M. Okabayashi: Trans. Japan. Inst. Metals., 1981, 22, 101–108.Google Scholar
  25. 25.
    D.M. Duffy and P.W. Tasker: Phil. Mag. A., 1986, 54, 759–771.CrossRefGoogle Scholar
  26. 26.
    D.P. Moon: D. Phil, thesis, University of Oxford, 1987.Google Scholar
  27. 27.
    D.P. Moon and M.J. Bennett: UKAEA Report AERE-R12757, 1987, Harwell Laboratory; To be published in Mater. Sci. Forum.Google Scholar
  28. 28.
    R.J. Hussey, P. Papaiacovou, J. Shen, D.F. Mitchell and M.J. Graham: Unpublished results.Google Scholar
  29. 29.
    J. Asher, S. Sugden, M.J. Bennett, R.W.M. Hawes, D.J. Savage and J.B. Price: Werkst. Korros 1987, 38, 506–516.CrossRefGoogle Scholar
  30. 30.
    M.J. Bennett, J.B. Price, C. Plympton and P. Colledge: Unpublished results.Google Scholar
  31. 31.
    H.E. Evans and R.C. Lobb: in Proc. 9th Int. Congr. on Metall. Corr., Toronto, 1984, 2, 46–53; Ottawa, National Research Council of Canada.Google Scholar
  32. 32.
    M.J. Bennett and A.T. Tuson: UKAEA Report AERE-R13309, 1988, Harwell Laboratory; To be published in Mater. Sci. Eng.Google Scholar
  33. 33.
    M.J. Bennett: in Proc. Conf. ‘High Temperature Corrosion’, (Ed. R.A. Rapp), NACE-6, 1983, 145–154.Google Scholar
  34. 34.
    P.W.G. Simpson and H.E. Evans: in ‘Nuclear Fuel Performance’, 1985, 1, 265–272; London, British Nuclear Energy Society.Google Scholar
  35. 35.
    M.J. Bennett: in Proc. 10th Int. Congr. Metall. Corr., Madras, 1987, 4, 3761–3770; New Delhi, Oxford and IBH Publishing Co.Google Scholar
  36. 36.
    J.R. Nicholls and P. Hancock: To be published in these Proceedings.Google Scholar
  37. 37.
    H. Nagai, M. Okabayashi and H. Mitani: Trans. Japan Inst. Metals, 1980, 21, 341–348.Google Scholar
  38. 38.
    J.E. Antill and K.A. Peakall: J. Iron Steel Inst., 1967, 205, 1136–1142.Google Scholar
  39. 39.
    M.J. Bennett, J.B. Price and D.J. Savage: UKAEA Report AERE-R11228, 1984, Harwell Laboratory.Google Scholar
  40. 40.
    G.M. Ecer and G.H. Meier: Oxid. Met., 1979, 13, 159.CrossRefGoogle Scholar

Copyright information

© ECSC, EEC, EAEC. Brussels and Luxembourg 1989

Authors and Affiliations

  • M. J. Bennett
    • 1
  • D. P. Moon
    • 1
  1. 1.Materials Development DivisionHarwell LaboratoryOxfordshireUK

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