Effect of Y2O3 content on the oxidation behavior of Fe-Cr-Al-based ODS alloys

  • Anwar Ul-Hamid
Testing And Evaluation
Received:
Revised:

Abstract

A study was conducted to investigate the cyclic oxidation behavior of two oxide dispersion strengthened (ODS) Fe-Cr-Al based alloys containing 0.17 wt.% and 0.7 wt.% Y2O3. The alloys were oxidized in air for 100 h at 1200°C based on a 24 h cycle period. X-ray diffraction (XRD) and analytical transmission electron microscopy (TEM) were used to characterize the structure, morphology, and composition of the oxide scales. Both alloys formed highly adherent and continuous layers of α-Al2O3 exhibiting a morphology indicative of inward scale growth. The role of Y2O3 was to promote adherence by segregating to the grain boundaries within the oxide. Concurrently, Y2O3 generated micro-porosity resulting in a scale of comparatively higher thickness in the alloy with 0.7 wt.% Y2O3.

Keywords

Fe-Cr-Al MA956 oxidation REE TEM Y2O3 
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J.S. Benjamin: Metall. Trans., 1, 1970, p. 2943.Google Scholar
  2. 2.
    G. Korb and A. Schwaiger: High Temperatures High Pressures, 1989, 21, p. 475.Google Scholar
  3. 3.
    W.J. Quadakkers: J. De Physique, 1993, IV(C9 3), p. 177.Google Scholar
  4. 4.
    E. Grundy and W.H. Patton: High Temperature Alloys: Their Exploitable Potential, Commission of the European Communities, J.B. Marriot, M. Merz, J. Nihoul, and J. Ward, ed., Elsevier, London, 1985, p. 327.Google Scholar
  5. 5.
    W.J. Quadakkers, H. Holzbrecher, K.G. Briefs, and H. Beske: Oxid. Met., 1989, 32, p. 67.CrossRefGoogle Scholar
  6. 6.
    M.J. Bennett, H. Romary, and J.B. Price: Heat Resistant Materials, ASM International, Materials Park, OH, 1991, p. 95.Google Scholar
  7. 7.
    H. Hedrich: New Materials by Mechanical Alloying Techniques, E. Artz and L. Schulz, ed., Deutsche Gesellschaft für Materialkunde, Frankfurt, Germany, 1990, p. 227.Google Scholar
  8. 8.
    D.P. Whittle and J. Stringer: Phil. Trans. R. Soc. Lond., 1980, A295, p. 309.CrossRefGoogle Scholar
  9. 9.
    F.H. Stott: Rep. Prog. Phys., 1987, 50, p. 861.CrossRefGoogle Scholar
  10. 10.
    K. Przybylski and G.J. Yurek: Mater. Sci. Forum, 1989, 43, p. 1.Google Scholar
  11. 11.
    J. Jedlinski: Solid State Phenomenon, 1992, 21/22, p. 335.CrossRefGoogle Scholar
  12. 12.
    G.C. Wood and F.H. Stott: High Temperature Corrosion, R.A. Rapp, ed., NACE-6, Houston, TX, 1983, p. 227.Google Scholar
  13. 13.
    H.M. Hindam and D.P. Whittle: Oxid. Met., 1982, 18(5/6), p. 245.CrossRefGoogle Scholar
  14. 14.
    A.M. Huntz: The Role of Active Elements in the Oxidation Behavior of Metals and Alloys, E. Lang, ed., Elsevier Applied Science, London/New York, 1989, p. 81.Google Scholar
  15. 15.
    A.M. Huntz: Mater. Sci. Eng., 1987, 87, p. 251.CrossRefGoogle Scholar
  16. 16.
    F.H. Stott and G.C. Wood: Mater. Sci. Eng., 1987, 87, p. 267.CrossRefGoogle Scholar
  17. 17.
    J. Stringer, B.A. Wilcox, and R.I. Jaffe: Oxid. Met., 1972, 5, p. 11.CrossRefGoogle Scholar
  18. 18.
    O.T. Goncel, J. Stringer, and D.P. Whittle: Corros. Sci., 1978, 18, p. 701.CrossRefGoogle Scholar
  19. 19.
    S.B. Newcomb, C.B. Boothroyd, and W.M. Stobbs: J. Microsc., 1985, 140, p. 195.Google Scholar
  20. 20.
    A. Czyrska-Filemonowicz, R.A. Versaci, D. Clemens, and W.J. Quadakkers: Microscopy of Oxidation, 2, S.B. Newcomb and M.J. Bennett, ed., Institute of Materials, London, UK, 1993, p. 288.Google Scholar
  21. 21.
    D.P. Whittle and H.M. Hindham: Corrosion-Erosion-Wear of Materials in Emerging Energy Systems, NACE, Houston, TX, 1982, p. 54.Google Scholar
  22. 22.
    J.D. Kuenzly and D.L. Douglass: Oxid. Met., 1974, 8(3), p. 139.CrossRefGoogle Scholar
  23. 23.
    A. Kumar, M. Nasrallah, and D.L. Douglas: Oxid. Met., 1974, 8(4), p. 227.CrossRefGoogle Scholar
  24. 24.
    T.A. Ramanarayanan, M. Raghavan, and R. Petkovic-Luton: J. Electrochem Soc., 1984, 131, p. 923.CrossRefGoogle Scholar
  25. 25.
    T.A. Ramanarayanan, R. Ayer, R. Petkovic-Luton, and D.P. Leta: Oxid. Met., 1988, 29(5/6), p. 445.CrossRefGoogle Scholar
  26. 26.
    M. Le Gall, B. Lesage, C. Monty, and J. Bernardini: J. Mater. Sci., 30, 1995, p. 201.CrossRefGoogle Scholar
  27. 27.
    A. Czyrska-Filemonowicz and B. Dubiel: J. Mat. Processing Tech., 1997, 64, pp. 53–64.CrossRefGoogle Scholar
  28. 28.
    D.A. Smith, C.M.F. Rae, and C.M. Grovenor: Grain Boundary Structure and Kinetics, ASM Materials Science Seminar, ASM, Metals Park, OH, 1980, p. 350.Google Scholar
  29. 29.
    K.T. Faber and A.G. Evans: Acta Met., 1983, 31, pp. 565–77.CrossRefGoogle Scholar

Copyright information

© ASM International 2003

Authors and Affiliations

  • Anwar Ul-Hamid
    • 1
  1. 1.Materials Characterization Laboratory, Center for Engineering Research, Research InstituteKing Fahd University of Petroleum and MineralsDhahranSaudi Arabia

Personalised recommendations