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Fatigue resistance of manual electric arc welding joints in high-strength 14Kh2GMR steel

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Abstract

The results are presented of testing the fatigue resistance of welded cruciform specimens with a symmetric cycle for 2·106 cycles. The results show that the endurance of welded joints produced with ANP-6P electrodes is 2.5–3 times longer than that of the welded joints produced with ANP-2 and UONI-13/45 electrodes. At high fatigue strength values of the welded joints produced with the ANP-6P electrodes, there are no stress concentrations in the area of transition from the welded joint to the parent metal. The favorable form of welded joints from the viewpoint of fatigue resistance is obtained as a result of technological advantages of the high-productivity ANP-6P electrodes and not by special treatment of welded joints.

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Literature cited

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Authors and Affiliations

  1. E. O. Paton Electric Welding Institute, Academy of Sciences of the Ukrainian SSR, Kiev

    L. I. Mikhodui, S. B. Kasatkin, V. D. Poznyakov & D. M. Kogut

Authors
  1. L. I. Mikhodui
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  2. S. B. Kasatkin
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  3. V. D. Poznyakov
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  4. D. M. Kogut
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Additional information

Translated from Problemy Prochnosti, No. 10, pp. 19–22, October, 1990.

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Mikhodui, L.I., Kasatkin, S.B., Poznyakov, V.D. et al. Fatigue resistance of manual electric arc welding joints in high-strength 14Kh2GMR steel. Strength Mater 22, 1405–1409 (1990). https://doi.org/10.1007/BF00767220

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  • DOI: https://doi.org/10.1007/BF00767220

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