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Resistance of maraging steel N18K9M5T to cyclic impact loads

  • Maraging Steels
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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Heat 2 has a higher resistance to cyclic impact loading and crack propagation than heats 1, 3, and 4.

  2. 2.

    The optimal heat treatment for heat 2 to obtain the best resistance to cyclic impact loading with acting stress σ≥180 kg/mm2 is aging at 490° for 3 h, and aging at 510° for 3 h at lower stresses.

  3. 3.

    Surface hardening (shotpeening) increases the resistance to impact loading more substantially for heat 1 than heat 3.

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Literature cited

  1. M. L. Bernshtein, Thermomechanical Treatment [in Russian], Metallurgizdat, Moscow (1968), p. 705.

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Authors
  1. A. Ya. Maloletnev
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  2. Yu. B. L'vov
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  3. I. V. Pestov
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  4. M. D. Perkas
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 37–41, July, 1975.

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Maloletnev, A.Y., L'vov, Y.B., Pestov, I.V. et al. Resistance of maraging steel N18K9M5T to cyclic impact loads. Met Sci Heat Treat 17, 584–588 (1975). https://doi.org/10.1007/BF00680406

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  • DOI: https://doi.org/10.1007/BF00680406

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