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Graphitization of steels in elevated-temperature service

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Abstract

Prolonged exposure of carbon and low alloy steel components to temperatures exceeding 800 °F (427 °C) can result in several kinds of material microstructural deterioration; for example, creep cavitation, carbide coarsening and/or spheroidization, and, less commonly, graphitization. Graphitization generally results from the decomposition of pearlite (iron + iron carbide) into the equilibrium structure of iron + graphite and can severely embrittle the steel when the graphite particles or nodules form in a planar, continuous manner. Graphitization has resulted in the premature failure of pressure boundary components, including high energy piping and boiler tubes. Failure due to graphitization continues to be of concern in long-term aged carbon and carbon-molybdenum steels, both in weldments and in base metal, where, as recently reported, prior deformation or cold work could accelerate the graphitization process. This paper describes the characteristics and kinetics of graphitization, reviews pertinent laboratory and field experience, and summarizes time-temperature service regimes within which graphitization can be anticipated.

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References

  1. ASM Metals Handbook, 10th ed., vol. 1, Properties and Selection: Irons, Steels and High-Performance Alloys, ASM International, Materials Park, OH, 1990, p. 644.

  2. E.L. Creamer: Evaluation of Materials in Process Equipment after Long Term Service in the Petroleum Industry, ASME MPC-12, A.R. Ciuffreda, ed., ASME, New York, NY, 1980, pp. 13–21.

    Google Scholar 

  3. R.W. Emerson: Trans. ASME, 1944, vol. 66, pp. 5–15.

    Google Scholar 

  4. W.G. Conant and W.A. Reich: “Graphitization Studies of Materials for High-Temperature Service in Steam Plants,” paper presented at the ASME Annual Meeting, New York, NY, 1946.

  5. S.H. Weaver: Trans. ASME, 1946, vol. 68, p. 631.

    Google Scholar 

  6. J.B. Nuchols and J.R. McGuffey: Mech. Eng., 1959, vol. 81 (5), pp. 43–45.

    CAS  Google Scholar 

  7. J.G. Wilson: Graphitization of Steel in Petroleum Refining Equipment and The Effect of Graphitization of Steel on Stress-Rupture Properties, Welding Research Council Bulletin No. 32, Welding Research Council, New York, NY, 1957.

    Google Scholar 

  8. I.A. Rohrig: Williamsburg Station Accident Investigation, Dec. 1977.

  9. W.R. Pavlichko and A. Solomon: Microstr. Sci., 1980, vol. 8, pp. 231–45.

    CAS  Google Scholar 

  10. R.D. Port: Corrosion 89, Apr. 1989, NACE, Houston, TX, 1989.

    Google Scholar 

  11. R.D. Port, W.C. Mack, and J. Hainsworth: Proc. 1st Int. Conf. on Heat-Resistant Materials, ASM International, OH, 1991, pp. 587–94.

    Google Scholar 

  12. A.A. Baranov and K.P. Bumin: Russ. Castings Prod., 1964, vol. 7, pp. 317–19.

    Google Scholar 

  13. F.K. Tkachenko: Russ. Castings Prod., 1962, vol. 5, pp. 235–36.

    Google Scholar 

  14. M. Okada: Trans. Jpn. Inst. Met., 1982, vol. 23 (7), pp. 353–59.

    Article  CAS  Google Scholar 

  15. A. Rosen and A. Taub: Mem. Sci. Rev. Metall., 1961, vol. 58, p. 957.

    CAS  Google Scholar 

  16. J. Harris, J. Whiteman, and A. Quarrell: Trans. AIME, 1965, vol. 233, p. 168.

    CAS  Google Scholar 

  17. Y.M. Gofman and G.G. Vinokurova: Therm. Eng., 1988, vol. 35 (7), pp. 392–94.

    Google Scholar 

  18. S. Niedzwiedz, A. Taub, and B.Z. Weiss: Isr. J. Technol., 1966, vol. 4 (4), pp. 233–42.

    CAS  Google Scholar 

  19. L.E. Samuels: Optical Microscopy of Carbon Steels, ASM, Metals Park, OH, 1980, p. 245.

    Google Scholar 

  20. R. Tanaka and A. Fujihira: J. Jpn. Inst. Met., 1966, vol. 30 (3), pp. 279–84.

    Article  CAS  Google Scholar 

  21. A. Fujihira: J. Jpn. Inst. Mets., 1980, vol. 44 (1), pp. 6–15.

    Article  CAS  Google Scholar 

  22. K.B. Rundman and T.N. Rouns: Trans. AFS, 1982, vol. 82 (117), pp. 487–97.

    Google Scholar 

  23. C. Wert: Phys. Rev., 1950, vol. 79, p. 601.

    Article  CAS  Google Scholar 

  24. D.W. James and G.M. Leak: Phil Mag., 1965, vol. 12, p. 491.

    Article  CAS  Google Scholar 

  25. F.S. Buffington, I.D. Bakalar, and M. Cohen: Acta Metall., 1961, vol. 9, p. 434.

    Article  CAS  Google Scholar 

  26. W.B. Bedesem: Evaluation of Materials in Process Equipment after Long Term Service in the Petroleum Industry, ASME MPC-12, A.R. Ciuffreda, ed., ASME, New York, NY, 1980, pp. 1–12.

    Google Scholar 

  27. H. Thielsch, E.M. Phillips, and E.R. Jerome, Jr.: Welding J., 1955, vol. 34, Research Suppl., pp. 286s-294s.

    Google Scholar 

  28. R. Viswanathan, J.R. Foulds, and D.I. Roberts: Proc. Int. Conf. on Life Assessment and Extension, The Hague, June 1998, paper no. 1.6.2.

  29. G. Kerzner, I. Sprung, and V. Zilberstein: Mater. Eval., 1989, vol. 47 (9), pp. 1008–18.

    Google Scholar 

  30. J.D. Parker, A. McMinn, and J. Foulds: PVP—Vol. 171, Life Assessment and Life Extension of Power Plant Components, T.V. Narayanan et al., ASME, New York, NY, 1989, Book No. H00486, pp. 223–30.

    Google Scholar 

  31. J.R. Foulds, C.W. Jewett, L.H. Bisbee, T.L. Gabel, and R. Viswanathan: Proc. 1992 Int. Joint Power Generation Conf., ASME, PWR-vol. 18, Steam Turbine-Generator Developments for the Power Generation Industry, W.G. Steltz, ed., Book No. G00688, ASME, New York, 1992.

    Google Scholar 

  32. L.H. Toft and R.A. Marsden: Conf. on Structural Processes in Creep, JISI/JIM, London, 1963, p. 275.

    Google Scholar 

  33. H. Thielsch: Defects and Failures in Pressure Vessels and Piping, Reinhold Publishing Co., New York, NY, 1965, pp. 49–83.

    Google Scholar 

  34. “Small Punch Testing for Fracture Toughness Measurement,” EPRI TR-105130, EPRI, Palo Alto, CA, 1995.

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Authors and Affiliations

  1. Exponent Failure Analysis Associates, Inc., Menlo Park, CA

    J. R. Foulds

  2. Electric Power Research Institute, Palo Alto, CA

    R. Viswanathan

Authors
  1. J. R. Foulds
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  2. R. Viswanathan
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Additional information

This paper was originally printed as part of a TMS Proceedings, Graphitization of Steels in Elevated-Temperature Service, proceedings, First International Conference on Microstructures and Mechanical Properties of Aging Materials, P.K. Liaw et al., ed., The Minerals, Metals and Materials Society, Warrendale, PA, 1993, pp. 61–69.

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Foulds, J.R., Viswanathan, R. Graphitization of steels in elevated-temperature service. J. of Materi Eng and Perform 10, 484–492 (2001). https://doi.org/10.1361/105994901770344935

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  • DOI: https://doi.org/10.1361/105994901770344935

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