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Effect of temperature on the effectiveness of hardening of heat resistant alloys

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Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    Fatigue tests of alloys KhN77TYuR and EI929 showed that the effectiveness of surface hardening by plastic deformation decreases with increasing testing temperatures, and at 900° the fatigue limit is the same in both cases.

  2. 2.

    The decreasing hardening effect at high temperatures results from relaxation of the favorable compressive stresses and changes in the surface layer.

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Literature cited

  1. Yu. V. Poloskin and V. V. Davydova, "The surface layer of hardened machine parts of heat resistant alloys," Metal. i Term. Obrabotka Metal., No. 2, 56–58 (1971).

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  2. M. S. Rakhmarova, and Ya. G. Mirer, Effect of Technological Factors on the Reliability of Gas Turbine Blades [in Russian], Mashinostroenie, Moscow (1966).

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  3. G. V. Makhanek, S. N. Petrova, and V. D. Sadovskii, in: Properties and Applications of Heat Resistant Alloys [in Russian], Nauka, Moscow (1966).

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  4. S. Z. Bokshtein, T. I. Gudkova, and S. T. Kishkin, in: Diffusion Processes, Structure, and Properties of Metals [in Russian], Mashinostroenie, Moscow (1964).

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Authors
  1. Yu. V. Poloskin
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  2. N. L. Makarovskii
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 5, pp. 56–59, May, 1973.

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Poloskin, Y.V., Makarovskii, N.L. Effect of temperature on the effectiveness of hardening of heat resistant alloys. Met Sci Heat Treat 15, 418–420 (1973). https://doi.org/10.1007/BF01166660

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  • DOI: https://doi.org/10.1007/BF01166660

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