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The nature of quasicleavage fracture in tempered 5.5Ni steel after hydrogen charging

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Abstract

Quenched and tempered 5.5Ni steel was embrittled by hydrogen charging and broken in air at room temperature. The primary fracture mode was transgranular quasicleavage. The quasicleavage facets were studied by scanning electron fractography and by transmission electron microscopy of profile fractographic specimens. The latter were prepared by plating the fracture surface with nickel and thinning so that the fracture surface was contained within the region of the specimen that was transparent to the electron beam. The fracture surface generally followed martensite lath boundaries. In addition, interlath microcracks were frequently found in the material immediately beneath the fracture surface. These results suggest that transgranular hydrogen embrittlement in this steel is primarily an interlath cracking phenomenon. Since the lath boundary planes tend to lie in {110}, the results also explain the prevalence of {110} quasicleavage in the embrittled specimens, which contrasts with the {100} cleavage found in uncharged specimens broken below the ductile-to-brittle transition temperature.

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References

  1. Kikuta. T. Araki, and T. Kuroda:Fractography in Failure Analysis, B.M. Strauss and W.M. Cullen, Jr., eds., ASTM STP 645, American Society for Testing and Materials, 1978, p. 107.

  2. Y. Kikuta and T. Araki:Hydrogen Effects in Metals, I. M. Bernstein and A.W. Thompson, eds., TMS-AIME, Warrendale, PA, 1981, p. 309.

    Google Scholar 

  3. F. Nakasoto and I. M. Bernstein:Metall. Trans. A, 1978, vol. 9A, p. 1317.

    Google Scholar 

  4. I.M. Bernstein:Metall. Trans. A, 1970, vol. 1, p. 3143.

    CAS  Google Scholar 

  5. Y. Takeda and C.J. McMahon, Jr.:Metall. Trans. A, 1981, vol. 12A, p. 1255.

    Google Scholar 

  6. C. J. McMahon, Jr.:Hydrogen Effects in Metals, I. M. Bernstein and A.W. Thompson, eds., TMS-AIME, Warrendale, PA, 1981, p. 219.

    Google Scholar 

  7. J. I. Kim: Ph.D. Thesis, Department of Materials Science and Mineral Engineering, University of California, Berkeley, CA, 1979.

    Google Scholar 

  8. J. I. Kim, C. K. Syn, and J. W. Morris, Jr.:Metall. Trans. A, 1983, vol. 14A, p. 93.

    Google Scholar 

  9. M. Nagumo, H. Morikawa, and K. Miyamoto: Proceedings JIMIS-2, Hydrogen in Metals, Suppl. Trans. Japan Inst. Metals, 1980, vol. 21, p. 405.

    Google Scholar 

  10. H. Haga and H. Mimura:Trans. Japan Inst. Metals, 1972, vol. 13, p. 155.

    CAS  Google Scholar 

  11. C. K. Syn, B. Fultz, and J. W. Morris, Jr.:Metall. Trans. A, 1978, vol. 9A, p. 1635.

    CAS  Google Scholar 

  12. S. Matsuda, T. Inoue, H. Mimura, and Y. Okamura:Toward Improved Ductility and Toughness, Climax Molybdenum Development Co. (Japan) Ltd., Kyoto, 1972, p. 45.

    Google Scholar 

  13. S. Hogmark, H. Swahn, and O. Vingsbo:Ultramicroscopy, 1975, vol. 1, p. 113.

    Article  CAS  Google Scholar 

  14. J. Tien, S. Nair, and R. Jensen:Hydrogen Effects in Metals, I.M. Bernstein and A. W. Thompson, eds., TMS-AIME, Warrendale, PA, 1981, p. 37.

    Google Scholar 

  15. Y. Kikuta,ibid.,, p. 755.

    Google Scholar 

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Authors and Affiliations

  1. Lawrence Berkeley Laboratory, Berkeley

    Y. H. Kim (Graduate Research Assistant)

  2. University of California, 94720, Berkeley, CA

    Y. H. Kim (Graduate Research Assistant) & J. W. Morris (Professor)

Authors
  1. Y. H. Kim
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  2. J. W. Morris
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Kim, Y.H., Morris, J.W. The nature of quasicleavage fracture in tempered 5.5Ni steel after hydrogen charging. Metall Trans A 14, 1883–1888 (1983). https://doi.org/10.1007/BF02645559

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  • DOI: https://doi.org/10.1007/BF02645559

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