Fatigue behavior of DIN 1.4307 and DIN 1.4306 stainless steels under high frequency loading

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Date
2023-01-13
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Mark
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Elsevier
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Abstract
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 1×107 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 1×109 and 1×1010 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.
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Procedia Structural Integrity. 2023, vol. 43, issue 1, p. 142-147.
https://www.sciencedirect.com/science/article/pii/S2452321622008125
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Peer-reviewed
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en
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
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