Skip to main content
SpringerLink
Log in

The oxidation of TD NiC (Ni-20Cr-2 vol pct ThO2) between 900° and 1200°C

  • Published:
Metallurgical Transactions Aims and scope Submit manuscript

Abstract

The oxidation of TD NiC (Ni-20Cr-2 vol pct ThO2) has been studied at temperatures between 900° and 1200°C. Chromium is selectively oxidized in TD NiC and the parabolic rate constants for the growth of the resulting Cr2O3 layer are about an order of magnitude lower than those for the growth of Cr2O3 on a simple Ni-Cr alloy. The oxidation rate of TD NiC is initially controlled by the interplay of diffusion through the Cr2O3 scale and the formation of gaseous CrO3 but after extended periods of oxidation the rate corresponds to that of the vaporization process. Comparison of results obtained for the oxidation of TD NiC to those for Ni-Cr alloys indicates that the ThO2 dispersion inTD NiC improves the oxidation properties of this alloy by promoting the selective oxidation of chromium and decreasing the growth rate of the Cr2O3 scale.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. D. B. Arnold and L. J. Klinger, Jr.:Met. Soc. Conf., 1968, vol. 47, pp. 611–35.

    Google Scholar 

  2. G. M. Ault and H. M. Burte:Met. Soc. Conf., 1968, vol. 47, pp. 3–57.

    Google Scholar 

  3. C. S. Giggins and F. S. Pettit:Trans. TMS-AIME, 1969, vol. 245, pp. 2495–2507.

    CAS  Google Scholar 

  4. F. S. Pettit and E. J. Feiten:J Electrochem. Soc, 1964, vol. 111, pp. 135–39.

    Article  CAS  Google Scholar 

  5. D. A. Jones and R. E. Westerman:Corrosion, 1965, vol. 21, pp. 295–305.

    Google Scholar 

  6. W. C. Hagel:Trans. ASM, 1963, vol. 56, pp. 583–99.

    CAS  Google Scholar 

  7. C. S. Tedmon, Jr.:J. Electrochem. Soc, 1966, vol. 113, pp. 766–68.

    Article  CAS  Google Scholar 

  8. A. U. Seybolt:J. Electrochem. Soc, 1960, vol. 107, pp. 147–56.

    Article  CAS  Google Scholar 

  9. W. C. Hagel:J. Am. Ceram. Soc, 1965, vol. 48, pp. 70–75.

    Article  CAS  Google Scholar 

  10. R. A. Rapp:Met. Soc. Conf., 1968, vol. 47, pp. 539–62.

    CAS  Google Scholar 

  11. E. W. Roberts and J. P. Robeits:Bull. Soc France Ceram., 1967, No. 77, pp. 3–13.

    Google Scholar 

  12. F. Maak and C. Wagner:Werkstoffe Korrosion, 1961, vol. 12, pp. 273–77.

    Article  CAS  Google Scholar 

  13. N. Birks and H. Rickert:J. Inst. Metals, 1962-63, vol. 91, pp. 308–11.

    Google Scholar 

  14. C. S. Giggins and F. S. Pettit:Trans. TMS-AIME, 1969, vol. 245, pp. 2509–14.

    CAS  Google Scholar 

  15. M. J. Fleetwood:J. Inst. Metals, 1966, vol. 94, pp. 218–23.

    CAS  Google Scholar 

  16. C. Wagner:Corrosion Sci, 1968, vol. 8, pp. 889–93.

    Article  CAS  Google Scholar 

  17. C. B. Alcock and P. B. Brown:J. Metal Sci., 1969, vol. 3, pp. 116–20.

    CAS  Google Scholar 

  18. G. B. Fedorov, E. A. Smirnov, and F. I. Zhomov :Met. iMetalloved. Chistykh Metal., Vypusk IV, 1963, pp. 110-21.

Download references

Author information

Authors and Affiliations

  1. Pratt & Whitney Aircraft, Division of United Aircraft Corp., Advanced Materials Research and Development Laboratory, Middletown, Conn.

    C. S. Giggins (Senior Research Assistant) & F. S. Pettit (Senior Research Associate)

Authors
  1. C. S. Giggins
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. F. S. Pettit
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Giggins, C.S., Pettit, F.S. The oxidation of TD NiC (Ni-20Cr-2 vol pct ThO2) between 900° and 1200°C. Metall Trans 2, 1071–1078 (1971). https://doi.org/10.1007/BF02664238

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02664238

Keywords

Search

Navigation