0567149 - ÚFM 2025 RIV NL eng C - Konferenční příspěvek (zahraniční konf.)
Klusák, Jan - Kozáková, Kamila - Jambor, Michal - Seitl, Stanislav
Fatigue behavior of DIN 1.4307 and DIN 1.4306 stainless steels under high frequency loading.
Procedia Structural Integrity. Vol. 43. Amsterdam: Elsevier B. V., 2023 - (Pokluda, J.; Šandera, P.), s. 142-147. ISSN 2452-3216.
[MSMF10 - International Conference on Materials Structure and Micromechanics of Fracture /10./. Brno (CZ), 12.09.2022-14.09.2022]
Grant CEP: GA ČR(CZ) GA20-00761S
Institucionální podpora: RVO:68081723
Klíčová slova: Fatigue crack * stainless steel * ultrasonic frequency loading
Obor OECD: Materials engineering

Two stainless steels DIN 1.4307 and DIN 1.4306 were tested by an ultrasonic fatigue loading device under push-pull mode (stress ratio R = -1). Life-time curves were determined in the high and very high cycle fatigue regions. The time dependence of frequency was monitored and evaluated. At the beginning of the tests (up to 1 × 10^7 cycles), an increase of the frequency was observed, followed by a slow frequency decrease. It relates to changes of microstructure. No failure occurred in the region between 1 × 10^9 and 1 × 10^10 cycles. The steel 1.4306 exhibits a higher fatigue life-time than the steel 1.4307. This is caused by the difference in the chemical composition of the two steels, namely by the higher nickel content in the 1.4306 steel.
Trvalý link: https://hdl.handle.net/11104/0344236