Conclusions
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1.
Surface hardening effectively increases the low-cycle fatigue strength of titanium alloy VT3-1 particularly with stress concentrators.
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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.
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3.
Hardening of the area near the stress concentrator without hardening the notch itself has comparatively little effect.
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Literature cited
S. V. Serensen and R. M. Shneiderovich, in: Strength at a Small Number of Loading Cycles [in Russian], Nauka, Moscow (1969).
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).
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).
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).
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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DOI: https://doi.org/10.1007/BF00665002