Influence of shock wave in a liquid on the limited endurance of carbon steel

Authors

  • I. O. Vakulenko Dnipropetrovsk national university of railway transport named after academician V. Lazaryan, Dnipropetrovsk, Ukraine
  • О. G. Lisnyak National Mining University, Dnepropetrovsk, Ukraine
  • O. М. Perkov Інститут чорної металургії ім. З.І. Некрасова НАН України, м. Дніпропетровськ, Ukraine
  • V. G. Efremenko State higher educational establishment "Priazovskyi state technical university", Mariupol, Ukraine

DOI:

https://doi.org/10.31498/2225-6733.30.2015.51703

Keywords:

hardness, cycle of loading, endurance, damage, amplitude, carbon steel

Abstract

The effect of shock wave treatment in water on fatigue behavior of heat treated carbon steel is presented in the article. The carbon steel with 0.45 % of carbon was studied. Before being treated with shock wave the specimens were quenched and tempered at 300oC. Cyclic loading on symmetrical bending trials was performed. It was found that the shock wave treatment results inf hardness and fatigue strength of steel increase. The hardness increase derives from the growth of the total number of the crystal lattice defects. The increase of fatigue endurance is attributed to the moment of transition shift from reversible to irreversible damage up to the higher amplitude area accompanied by growth of cycles number before breakage. It is due to the improvement of steel structure resulting from the shock wave processing. It ensues from the mobile dislocations increased amount, which provides, through recombination, the subsequent increase of endurance in cyclic loading. As an additional source of the amount of mobile dislocations increase is the dislocations tear-out from fastening spots as a result of the shock wave treatment

Author Biographies

I. O. Vakulenko, Dnipropetrovsk national university of railway transport named after academician V. Lazaryan, Dnipropetrovsk

Доктор технічних наук, професор

О. G. Lisnyak, National Mining University, Dnepropetrovsk

Кандидат технічних наук, доцент

O. М. Perkov, Інститут чорної металургії ім. З.І. Некрасова НАН України, м. Дніпропетровськ

Кандидат технічних наук, старший науковий співробітник

V. G. Efremenko, State higher educational establishment "Priazovskyi state technical university", Mariupol

Доктор технічних наук, професор

References

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How to Cite

Vakulenko, I. O., Lisnyak О. G., Perkov O. М., & Efremenko, V. G. (2015). Influence of shock wave in a liquid on the limited endurance of carbon steel. Reporter of the Priazovskyi State Technical University. Section: Technical Sciences, 1(30), 153–158. https://doi.org/10.31498/2225-6733.30.2015.51703

Issue

Vol. 1 No. 30 (2015): Reporter of the Priazovskyi State Technical University. Section: Technical sciences

Section

Materials science

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