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Risk volume effect in very high cycle fatigue of 304L stainless steel
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SYSNO ASEP 0577427 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Risk volume effect in very high cycle fatigue of 304L stainless steel Author(s) Klusák, Jan (UFM-A) RID, ORCID
Fintová, Stanislava (UFM-A) ORCID
Kozáková, Kamila (UFM-A) ORCID
Jambor, Michal (UFM-A) ORCID, RID
Seitl, Stanislav (UFM-A) RID, ORCIDNumber of authors 5 Article number 108016 Source Title International Journal of Fatigue. - : Elsevier - ISSN 0142-1123
Roč. 178, JAN (2024)Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords 304L stainless steel ; Ultrasonic loading ; Fatigue ; Size effect ; Risk volume Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GA21-14886S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UFM-A - RVO:68081723 UT WOS 001105413800001 EID SCOPUS 85175477598 DOI https://doi.org/10.1016/j.ijfatigue.2023.108016 Annotation Risk volume can be considered as a volume where the crack will initiate with the highest probability. Thus, it is a serious issue considering the specific geometry of the samples for ultrasonic loading. Also, the distribution of the stresses within the risk volume represents important information for fatigue behaviour prediction and description. The risk volume for 304L stainless austenitic steel samples with different geometry was numerically analysed and correlated to the results of the ultrasonic fatigue experiments. Obtained fatigue data and the evolution of the microstructure related to the calculated risk volume sizes. The formation of slip marks corresponded to the calculated stress distribution within the risk volume. The differences in the calculated sizes of the risk volume for different sample geometries were reflected in changes in the microstructure of the material and in the measured fatigue lifetimes. Obtained results can partially explain observed differences in the fatigue properties when comparing ultrasonic fatigue testing with conventional methods. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2025 Electronic address https://www.sciencedirect.com/science/article/pii/S0142112323005170?via%3Dihub
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