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Effect of mechanical surface hardening on the low-cycle fatigue strength of titanium alloys

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Conclusions

  1. 1.

    Surface hardening effectively increases the low-cycle fatigue strength of titanium alloy VT3-1 particularly with stress concentrators.

  2. 2.

    Hardening a notch by burnishing substantially increases the fatigue limit under load to a value corresponding to the yield strength of the material and may completely eliminate the unfavorable effect of the concentrator.

  3. 3.

    Hardening of the area near the stress concentrator without hardening the notch itself has comparatively little effect.

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Literature cited

  1. 1.

    S. V. Serensen and R. M. Shneiderovich, in: Strength at a Small Number of Loading Cycles [in Russian], Nauka, Moscow (1969).

  2. 2.

    I. V. Kudryavtsev and L. A. Sosnovskii, in: Investigation of the Strength of Steels under Cyclic Loads in the Elastoplastic Region [in Russian], ONTI TsNIITMASh, Moscow (1967).

  3. 3.

    I. V. Kudryavtsev and L. N. Burmistrova, Transactions of the Central Scientific-Research Institute of Technology and Mechanical Engineering [in Russian], Book 110, Mashinostroenie, Moscow (1969).

  4. 4.

    A. D. Chudnovskii and P. I. Kudryavtsev, Transactions of the Central Scientific-Research Institute of Technology and Mechanical Engineering [in Russian], Book 110, Mashinostroenie, Moscow (1969).

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Additional information

Central Scientific-Research Institute of Technology and Mechanical Engineering. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 44–46, December, 1971.

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Kudryavtsev, I.V., Vainshtein, V.G. Effect of mechanical surface hardening on the low-cycle fatigue strength of titanium alloys. Met Sci Heat Treat 13, 1038–1040 (1971). https://doi.org/10.1007/BF00665002

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Keywords

  • Fatigue
  • Titanium
  • Yield Strength
  • Titanium Alloy
  • Fatigue Strength