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Strengthening of maraging steels during cold plastic deformation and heat treatment

  • Maraging Steels
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    The high ductility of carbon-free martensite in Fe−Ni−Co−Ti steels permits cold deformation with large reductions (as high as 99%), which is an efficient method of increasing the strength characteristics of such steels. The chemical composition of the steels has a negligible effect on strengthening as the result of deformation.

  2. 2.

    Lowering the solutioning temperature of maraging steels not containing hard-to-dissolve intermetallic phases at the austenitizing temperature produces an additional increase in strength as large as 300 MPa after deformation and aging.

  3. 3.

    As the results of the combined treatment including quenching, cold plastic deformation, and aging the strength of maraging steels with a total 10–18% cobalt and molybdenum can be increased to 3200–3800 MPa.

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Literature Cited

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Authors
  1. S. M. Bityukov
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  2. S. V. Grachev
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  3. N. A. Rundkvist
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  4. Yu. S. Dubov
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  5. S. A. Ogolizkhin
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Additional information

S. M. Kirov Ural Polytechnic Institute. M. I. Kalinin Belorussian Metallurgical Combine. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 46–49, April, 1983.

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Bityukov, S.M., Grachev, S.V., Rundkvist, N.A. et al. Strengthening of maraging steels during cold plastic deformation and heat treatment. Met Sci Heat Treat 25, 301–304 (1983). https://doi.org/10.1007/BF00778328

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  • DOI: https://doi.org/10.1007/BF00778328

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