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Optimal method of surface plastic deformation of compressor disks made of alloys VT9 and ÉI698VD

  • Heat Treatment Technology
  • Published:
Metal Science and Heat Treatment Aims and scope

Conclusions

  1. 1.

    To strengthen compressor disks of alloy VT9 we recommend pneumoshotpeening followed by vibropolishing and microshotpeening, ensuring the formation of the highest compressive stresses at the surface (40–60 kgf/mm2) and extending to a depth exceeding the depth of the damaged layer after turning.

Line broadening amounted to 300±20% and the surface roughness Ra=1.25-0.63.

  1. 2.

    The best method of strengthening compressor disks of alloy ÉI698VD is microshotpeening, ensuring formation of compressive stresses with a maximum value of 120 kgf/mm2 at the surface and extending to a depth equal to the depth of the damaged layer after turning.

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Literature cited

  1. I. V. Kudryavtsev, Improving the Strength and Service Life of Machine Parts by Surface Plastic Deformation [in Russian], Conference Materials. TsNIITMASh (1970) p. 262.

  2. A. V. Podzei et al., Technological Residual Stresses [in Russian], Mashinostroenie, Moscow (1973).

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  3. I. G. Grinchenko, Strengthening Parts of Heat Resistant and Titanium Alloys [in Russian], Mashinostroenie, Moscow (1971), p. 116.

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  4. G. A. Deryagin, "Strengthening the scarf portion of turbine vanes by strain hardening," in: Strengthening Machine Parts by Mechanical Strain Hardening [in Russian], Nauka, Moscow (1965) p. 198.

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Authors
  1. V. I. Tseitlin
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  2. Yu. V. Poloskin
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  3. N. L. Makarovskii
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  4. V. I. Volkov
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Additional information

Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 13–16, April, 1979.

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Tseitlin, V.I., Poloskin, Y.V., Makarovskii, N.L. et al. Optimal method of surface plastic deformation of compressor disks made of alloys VT9 and ÉI698VD. Met Sci Heat Treat 21, 257–261 (1979). https://doi.org/10.1007/BF00775102

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  • DOI: https://doi.org/10.1007/BF00775102

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