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Hydrogen embrittlement of steel with nonmetallic inclusions

  • Structural Steels
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Instead of the ductile cracks observed in the metal free of hydrogen, facets of quasibrittle fracture perpendicular to the tensile force are observed around nonmetallic inclusions in samples saturated with hydrogen.

  2. 2.

    Cracks of quasibrittle fracture are formed around large crystalline inclusions but not around sulfides in steel 34KhN3M. The shape of the inclusions is responsible for the cracks in the neck, which does not change the even elongation of the sample.

  3. 3.

    In austenitic steel 1Kh18N10T fracture begins around brittle rectangular nonmetallic inclusions. The large number and shape of the inclusions favor reduction of even elongation in the presence of hydrogen.

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Authors
  1. V. P. Krylov
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  2. N. I. Vorob'eva
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 5, pp. 40–42, May, 1973.

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Krylov, V.P., Vorob'eva, N.I. Hydrogen embrittlement of steel with nonmetallic inclusions. Met Sci Heat Treat 15, 402–404 (1973). https://doi.org/10.1007/BF01166655

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  • DOI: https://doi.org/10.1007/BF01166655

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