Safe choice of structural steels in a region of ultra-high number of load cycles

• Autorzy: Nový František , Bokůvka Otakar , Trško Libor , Jambor Michal

Identyfikatory

DOI

10.30657/pea.2019.24.06

• Języki publikacji: EN

Abstrakty

EN

In this paper the authors introduce their own selected experimental results in the field of the investigation of fatigue resistance of structural steels. The experiments were carried out on the nine structural steels including high strength steels, DOMEX 700MC, HARDOX 400, HARDOX 450, 100Cr6 (UTS from 446 MPa to 2462 MPa) at high-frequency cyclic loading (f = 20 kHz, T = 20 ± 5 °C, R = -1) in the region of number cycles ranged from N ≈ 2×10⁶ to N ≈ 2×10⁶ cycles of loading. The continuous decrease of fatigue strength in dependence on the number of loading cycles was observed with the average value of ratio σ_a2x10⁹/ σ_a2x10⁶ = 0.69.

Słowa kluczowe

EN

structural steels; fatigue resistance; ultra high cycle fatigue

PL

stal konstrukcyjna; odporność na zmęczenie; wytrzymałość zmęczeniowa

• Wydawca: Oficyna Wydawnicza Stowarzyszenia Menedżerów Jakości i Produkcji
• Czasopismo: Production Engineering Archives
• Rocznik: 2019
• Tom: Vol. 24
• Strony: 25--28
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Nový František

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Žilina, Slovakia

autor

Bokůvka Otakar

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Žilina, Slovakia

autor

Trško Libor

• University of Žilina, Research Centre, Žilina, Slovakia

autor

Jambor Michal

• University of Žilina, Faculty of Mechanical Engineering, Department of Materials Engineering, Žilina, Slovakia

Bibliografia

• 1. Bathias, C., 1999. There is no infinite fatigue life in metallic materials, Fa-tigue Fract. Eng. Mater Struct 22(7), 559-565.
• 2. Bathias, C., Paris, P.C., 2004. Gigacycle Fatigue in Mechanical Practice, CRC Press.
• 3. Bathias, C., 2006. Piezoelectric fatigue testing machines and devices, Int. J. Fatigue 28, 1438–1445.
• 4. Bokůvka, O., Nicoletto, G., Kunz, L., Palcek, P., Chalupová, M. 2002. Low and High Frequency Fatigue Testing, EDIS ŽU Žilina.
• 5. Bokůvka, O., Nicoletto, G., Kunz, L., Nový, F., Chalupová, M. 2014. Fatigue of Materials at Low and High Frequency Loading, EDIS ŽU Žilina.
• 6. Chapetti, M.D., 2010. Prediction of threshold for very high cycle fatigue (N >107 cycles). Procedia Eng. 2, 257–264. https://doi.org/10.1016/j.pro-eng.2010.03.028
• 7. Höppel, H.W., Prell, M., May, L., Göken, M., 2010. Influence of grain size and precipitates on the fatigue lives and deformation mechanisms in the VHCF-regime, Procedia Engineering, 1025–1034. https://doi.org/10.1016/j.proeng.2010.03.111
• 8. Kazymyrovych, V., 2009. Very High Cycle Fatigue of Engineering Materi-als (a literature review), Faculty of Technology and Science, Materials Engineering, Karlstads universitet.
• 9. Nový, F., Bokůvka, Trško, L., Chalupová, M. 2012. Ultrahigh-cyclefatigueofmaterials, Annals of Faculty Engineering Hunedoara In-ternational Journal of Engineering 10(2), 231-234.
• 10. Ritchie, R.O., 1981. Application of Fracture Mechanics to Fatigue Crack Propagation, University of California.
• 11. Stanzl-Tsechegg, S.E., 1999. Fracture mechanism and fracture mechanism at ultrasonic frequencies, Fatigue Fract. Eng. Mater Struct., 22(7), 567-579.
• 12. Szataniak, P., 2015. Fatigue Properties of Fine-grained Steels, PhD. Thesis, ŽU Žilina.
• 13. Trško, L., Nový, F., Bokůvka, O., Jambor, M., 2018. Ultrasonic Fatigue Testing in the Tension-Compression Mode. J. Vis. Exp. (133), e57007, doi:10.3791/57007 (2018).
• 14. Ulewicz, R., Mazur, M., 2013. Fatigue testing structural steel as a factor of safety of technical facilities maintenance. Prod. Eng. Arch. 1/1, 32–34. https://doi.org/10.30657/pea.2013.01.10
• 15. Ulewicz, R., Szataniak, P., Novy, F., 2014. Fatigue properties of wear re-sistant martensitic steel, in: METAL 2014 - 23rd International Confer-ence on Metallurgy and Materials, Conference Proceedings. pp. 784–789.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).