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Effects of R-ratio on the fatigue crack growth of Nb-Si(ss) and Nb-10Si In Situ composites

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Abstract

The effects of changes in R ratio on the fatigue crack growth behavior of a Nb-10 at. pct Si composite as well as bulk Nb-1.24 at. pct Si were determined. Fatigue crack growth experiments were performed over a range of ΔK levels at R ratios of 0.1 and 0.4. Qualitative and quantitative scanning electron microscopy studies were performed to characterize the fatigue fracture features of the composites and alloys, in order to determine the factors controlling these fracture features. The results of this work indicate that increases in R ratio reduce the observed threshold stress intensities in both materials. Somewhat higher fatigue thresholds were observed in the Nb-Si (ss) compared to pure Nb in the literature. In contrast to the bulk Nb-Si (ss) alloy, which exhibited no evidence of cleavage fracture in fatigue at any R ratio or ΔK level, the Nb-Si (ss) constituent in the Nb-10 at. pct Si composite exhibited a distinct fracture mode transition from ductile tearing near threshold and low ΔK to cleavage fracture with an increase in ΔK and K max. Possible reasons for such observations are provided.

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References

  1. High-Temperature Ordered Intermetallic Alloys—I, Materials Research Society Symposia Proceedings, C.C. Koch, C.T. Liu, and N.S. Stoloff, eds., Materials Research Society, Pittsburgh, PA, 1985, vol. 39.

    Google Scholar 

  2. High-Temperature Ordered Intermetallic Alloys—II, Materials Research Society Symposia Proceedings, N.S. Stoloff, C.C. Koch, C.T. Liu, and O. Izumi, eds., Materials Research Society, Pittsburgh, PA, 1987, vol. 81.

    Google Scholar 

  3. High-Temperature Ordered Intermetallic Alloys—III, Materials Research Society Symposia Proceedings, C.T. Liu, A.I. Taub, N.S. Stoloff, and C.C. Koch, eds., Materials Research Society, Pittsburgh, PA, 1989, vol. 133.

    Google Scholar 

  4. High-Temperature Ordered Intermetallic Alloys—IV, Materials Research Society Symposia Proceedings, L.A. Johnson, D.P. Pope, and J.O. Stiegler, eds., Materials Research Society, Pittsburgh, PA, 1991, vol. 213.

    Google Scholar 

  5. High-Temperature Ordered Intermetallic Alloys—V, Materials Research Society Symposia Proceedings, I. Baker, R. Darolia, J.D. Whittenberger, and M.H. Yoo, eds., Materials Research Society, Pittsburgh, PA, 1993, vol. 288.

    Google Scholar 

  6. J.J. Lewandowski, D.M. Dimiduk, W. Kerr, and M.G. Mendiratta: Materials Research Society Symposium Proceedings, Materials Research Society, Pittsburgh, PA, 1988, vol. 120, pp. 103–09.

    Google Scholar 

  7. M.G. Mendiratta, J.J. Lewandowski, and D.M. Dimiduk: Metall. Trans. A, 1991, vol. 22A, pp. 1573–83.

    CAS  Google Scholar 

  8. J.D. Rigney, P.M. Singh, and J.J. Lewandowski: J. Met., 1992, pp. 36–41.

  9. K.-M. Chang, B.P. Bewlay, J.A. Sutliff, and M.R. Jackson: J. Met., 1992, pp. 59–63.

  10. J. Kajuch, J.D. Rigney, and J.J. Lewandowski: Mater. Sci. Eng. A, 1992, vol. 155, pp. 59–65.

    Article  Google Scholar 

  11. J. Kajuch, J. Short, and J.J. Lewandowski: Acta Metall. Mater., 1995, vol. 43, pp. 1955–67.

    Article  CAS  Google Scholar 

  12. K. Badrinarayanan, A.L. McKelvey, K.T.V. Rao, and R.O. Ritchie: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 3781–92.

    Article  CAS  Google Scholar 

  13. B.P. Bewlay, M.R. Jackson, and H.A. Lipsitt: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 3801–08.

    Article  CAS  Google Scholar 

  14. B.P. Bewlay, H.A. Lipsitt, M.R. Jackson, and J.A. Sutliff: “Investigation of High-Temperature Eutectic-Based Microcomposites” AFOSR Final Report, 1996.

  15. J.D. Rigney and J.J. Lewandowski: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 3292–3306.

    CAS  Google Scholar 

  16. B.P. Bewlay, M.R. Jackson, and H.A. Lipsitt: Processing and Design Issues in High Temperature Materials, TMS, Warrendale, PA, 1997, pp. 247–62.

    Google Scholar 

  17. T.B. Massalski: Binary Alloy Phase Diagrams, Vols. 1 and 2, ASM INTERNATIONAL, Metals Park, OH, 1986.

    Google Scholar 

  18. M.G. Mendiratta and D.M. Dimiduk: Scripta Metall., 1991, vol. 25, pp. 237–42.

    Article  CAS  Google Scholar 

  19. J.D. Rigney: Ph.D. Dissertation, Case Western Reserve University, Cleveland, OH, 1994.

    Google Scholar 

  20. R.O. Ritchie: Int. Met. Rev., 1979, vol. 20, pp. 205–30.

    Google Scholar 

  21. R.J. Cooke and C.J. Beevers: Eng. Fract. Mech., 1973, vol. 5, pp. 1061–71.

    Article  CAS  Google Scholar 

  22. J. Masounave and J.-P. Bailon: Scripta Metall., 1975, vol. 9, pp. 723–30.

    Article  CAS  Google Scholar 

  23. R.O. Ritchie: J. Eng. Mater. Technol., 1977, vol. 99, pp. 195–204.

    CAS  Google Scholar 

  24. C.J. Beevers: Met. Sci., 1977, vol. 11, pp. 362–67.

    CAS  Google Scholar 

  25. R.O. Ritchie: Met. Sci., 1977, vol. 11, pp. 368–81.

    Article  CAS  Google Scholar 

  26. S. Fariabi, A.L.W. Collins, and K. Salama: Metall. Trans. A, 1983, vol. 14A, pp. 701–07.

    Google Scholar 

  27. A.T. Stewart: Eng. Fract. Mech., 1980, vol. 13, pp. 463–78.

    Article  CAS  Google Scholar 

  28. K. Minakawa, G. Levan, and A.J., McEvily: Metall. Trans. A, 1986, vol. 17A, pp. 1787–95.

    Google Scholar 

  29. K.T.V. Rao, G.R. Odette, and R.O. Ritchie: Acta Metall. Mater., 1994, vol. 42, pp. 893–911.

    Article  CAS  Google Scholar 

  30. W.A. Zinsser Jr. and J.J. Lewandowski: Case Western Reserve University, Cleveland, OH, unpublished research, 1997.

  31. K.T.V. Rao, G.R. Odette, and R.O. Ritchie: Acta Metall. Mater., 1992, vol. 40, pp. 353–61.

    Article  CAS  Google Scholar 

  32. K.T.V. Rao and R.O. Ritchie: Mater. Sci. Eng., 1992, vol. A153, pp. 479–85.

    CAS  Google Scholar 

  33. K.T.V. Rao, W.O. Soboyejo, and R.O. Ritchie: Metall. Trans. A, 1992, vol. 23A, pp. 2249–57.

    CAS  Google Scholar 

  34. W.O. Soboyejo and S.M.L. Sastry: Mater. Sci. Eng., 1993, vol. A171, pp. 95–104.

    CAS  Google Scholar 

  35. L. Murugesh, K.T.V. Rao, and R.O. Ritchie: Scripta Metall., 1993, vol. 29, pp. 1107–12.

    Article  CAS  Google Scholar 

  36. J.I. Dickson, I. Uribe-Perez, and E. Geckinli: Mater. Sci. Eng., 1983, vol. 60, pp. 231–40.

    Article  Google Scholar 

  37. W.W. Gerberich, N.R. Moody, and K. Jatavallabhula: Scripta Metall., 1980, vol. 14, p. 113.

    Article  CAS  Google Scholar 

  38. W.W. Gerberich and K. Jatavallabhula: Acta Metall., 1983, vol. 31, p. 241.

    Article  CAS  Google Scholar 

  39. R.O. Ritchie and J.F. Knott: Acta Metall., 1973, vol. 21, pp. 639–48.

    Article  CAS  Google Scholar 

  40. M.G. Mendiratta, R. Goetz, D.M. Dimiduk, and J.J. Lewandowski: Metall. Mater. Trans. A, 1995, vol. 26A, pp. 1767–76.

    CAS  Google Scholar 

  41. J.F. Knott: Fundamentals of Fracture Mechanics, Butterworth and Co., London, 1981.

    Google Scholar 

  42. R.W. Hertzberg: Deformation and Fracture Mechanics of Engineering Materials, 2nd ed., John Wiley & Sons, New York, NY, 1983.

    Google Scholar 

  43. A.V. Samant and J.J. Lewandowski: Metall. Mater. Trans. A, 1997, vol. 28A, pp. 389–93.

    CAS  Google Scholar 

  44. R.O. Ritchie, J.F. Knott, and J.R. Rice: J. Mech. Phys. Solids, 1973, vol. 21, pp. 395–410.

    Article  CAS  Google Scholar 

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Author notes

  1. W. A. Zinsser Jr. (Graduate Student)

    Present address: the Department of Materials Science and Engineering, Case Western Reserve University, 44106, Cleveland, OH

Authors and Affiliations

  1. Cessna Aircraft Co., 67226, Wichita, KS

    W. A. Zinsser Jr. (Graduate Student)

  2. the Department of Materials Science and Engineering, Case Western Reserve University, 44106, Cleveland, OH

    J. J. Lewandowski (Professor)

Authors
  1. W. A. Zinsser Jr.
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  2. J. J. Lewandowski
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Additional information

This article is based on a presentation made in the symposium “Fatigue and Creep of Composite Materials” presented at the TMS Fall Meeting in Indianapolis, Indiana, September 14–18, 1997, under the auspices of the TMS/ASM Composite Materials Committee.

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Zinsser, W.A., Lewandowski, J.J. Effects of R-ratio on the fatigue crack growth of Nb-Si(ss) and Nb-10Si In Situ composites. Metall Mater Trans A 29, 1749–1757 (1998). https://doi.org/10.1007/s11661-998-0098-x

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