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Strain distribution effects on the low-cycle fatigue behavior of Fe-C-Mo steels

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Abstract

The strain distributions obtained from monotonic finite element method (FEM) calculations have been employed to model the low-cycle fatigue (LCF) behavior of Fe-C-Mo dual-phase steels. The microstructures considered have a continuous ferrite matrix (with Mo2C precipitates) surrounding martensite packets. Two microstructural parameters have been controlled: (1) the volume fraction of martensite and (2) the strength of the ferrite matrix. The FEM approximations show that highly strained regions dominate LCF lifetimes. The experimentally observed reductions in plastic strain life for increasing martensite volume fractions are described usingM ε , the strain magnification factor, which is obtained from the FEM analyses. Strengthening the ferrite matrix or reducing the volume fraction of martensite reducesM ε . The cyclic softening observed is qualitatively correlated with FEM predictions of increasing plastic strain in the martensite as the ferrite strength increases. The overall cyclic hardening-softening behavior results from the combination of ferritic hardening combined with martensitic softening.

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References

  1. J.O. Sperle:Int. J. Fatigue, 1985, vol. 2, pp. 79–86.

    Article  Google Scholar 

  2. A.M. Sherman and R.G. Davies:Int. J. Fatigue, 1981, vol. 1, pp. 36–40.

    Article  Google Scholar 

  3. C.M. Wan, K.C. Chou, M.T. Jahn, and S.M. Kuo:J. Mater. Sci., 1981, vol. 16, pp. 2521–26.

    Article  CAS  Google Scholar 

  4. S.R. Mediratta, V. Ramaswamy, and P. Rama Rao:Int. J. Fatigue, 1985, vol. 2, pp. 107–15.

    Article  Google Scholar 

  5. S.R. Mediratta, V. Ramaswamy, and P. Rama Rao:Int. J. Fatigue, 1985, vol. 2, pp. 101–06.

    Article  Google Scholar 

  6. S.R. Mediratta, V. Ramaswamy, and P. Rama Rao:Scripta Metall., 1986, vol. 20, pp. 555–58.

    Article  CAS  Google Scholar 

  7. A.M. Sherman and R.G. Davies:Metall. Trans. A, 1979, vol. 10A, pp. 929–33.

    CAS  Google Scholar 

  8. R.M. Ramage, G.J. Shiflet, K.V. Jata, and E.A. Starke, Jr.:Metall. Trans. A, 1987, vol. 18A, pp. 1291–98.

    CAS  Google Scholar 

  9. J.H. Beatty, G.J. Shiflet, and K.V. Jata:Metall. Trans. A, 1988, vol. 19A, pp. 973–86.

    CAS  Google Scholar 

  10. B. Karlson and B.O. Sundstrom:Mater. Sci. Eng., 1974, vol. 16, pp. 161–68.

    Article  Google Scholar 

  11. J. Jinoch, S. Ankem, and H. Margolin:Mater. Sci. Eng., 1978, vol. 34, pp. 203–11.

    Article  CAS  Google Scholar 

  12. S. Ankem and H. Margolin:Metall. Trans. A, 1982, vol. 13A, pp. 595–601.

    Google Scholar 

  13. S. Ankem and H. Margolin:Metall. Trans. A, 1982, vol. 13A, pp. 603–09.

    Google Scholar 

  14. M. Grujicic, T. Erturk, and W.S. Owen:Mater. Sci. Eng., 1986, vol. 82, pp. 151–59.

    Article  CAS  Google Scholar 

  15. J.H. Beatty and G.J. Shiflet:Metall. Trans. A, 1988, vol. 19A, pp. 1617–20.

    CAS  Google Scholar 

  16. D.V. Edmonds and R.W.K. Honeycombe:J. Iron Steel Inst., March 1973, pp. 209–16.

  17. M. Mannerkoski:Acta Polytech. Scand., 1964, ch. 26, p. 7.

  18. K. Relander:Acta Polytech. Scand., 1964, ch. 34, p. 7.

  19. F.G. Berry and R.W.K. Honeycombe:Metall. Trans. A, vol. 1, 1970, pp. 3279–86.

    CAS  Google Scholar 

  20. T. Obara, G.J. Shiflet, and H.I. Aaronson:Metall. Trans. A, 1983, vol. 14A, pp. 1159–67.

    Google Scholar 

  21. P.C. Kohnke: inANSYS Engineering Analysis System, Theoretical Manual, Swanson Analysis Systems, Inc., Houston, PA, 1986.

    Google Scholar 

  22. D.V. Wilson:Met. Sci., Aug./Sep. 1977, pp. 321–31.

  23. J.T. Barnaby and F.M. Peace:Proc. ISI Conf. on the Effects of Second Phase Particles on the Mechanical Properties of Steel, Mar. 24–25, 1971, Scarborough, U.K., ISI Pub., London, 1971, pp. 124–27.

    Google Scholar 

  24. R.A. Fournelle, E.A. Grey, and M.E. Fine:Metall. Trans. A, 1976, vol. 7A, pp. 669–82.

    CAS  Google Scholar 

  25. R.W. Landgraf: inFatigue and Microstruture, ASM Materials Science Seminar, Metals Park, OH, 1978, pp. 439–66.

    Google Scholar 

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Authors and Affiliations

  1. United States Army Materials Technology Laboratory, 02172, Watertown, MA

    J. H. Beatty (Materials Technology Manager)

  2. Department of Materials Science, University of Virginia, 22901, Charlottesville, VA

    G. J. Shiflet (Professor)

Authors
  1. J. H. Beatty
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  2. G. J. Shiflet
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Formerly Graduate Student, Department of Materials Science, University of Virginia.

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Beatty, J.H., Shiflet, G.J. Strain distribution effects on the low-cycle fatigue behavior of Fe-C-Mo steels. Metall Trans A 22, 675–683 (1991). https://doi.org/10.1007/BF02670290

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  • DOI: https://doi.org/10.1007/BF02670290

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