Ultrasonic fatigue testing of structural steel S275JR+AR with insights into corrosion, mean stress and frequency effects
Gorash, Yevgen and Comlekci, Tugrul and Styger, Gary and Kelly, James and Brownlie, Frazer and Milne, Lewis (2023) Ultrasonic fatigue testing of structural steel S275JR+AR with insights into corrosion, mean stress and frequency effects. Materials, 16 (5). 1799. ISSN 1996-1944 (https://doi.org/10.3390/ma16051799)
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Abstract
There are limited experimental data on VHCF for structural steels for >107 cycles. Unalloyed low-carbon steel S275JR+AR is a common structural material for the heavy machinery in minerals, sand and aggregate applications. The purpose of this research is to investigate the fatigue behaviour in the gigacycle domain (>109 cycles) for S275JR+AR grade steel. This is achieved using accelerated ultrasonic fatigue testing in as-manufactured, pre-corroded and non-zero mean stress conditions. As internal heat generation is a massive challenge for ultrasonic fatigue testing of structural steels which exhibit a pronounced frequency effect, effective temperature control is crucial for implementation of testing. The frequency effect is assessed by comparing the test data at 20 kHz and 15–20 Hz. Its contribution is significant, as there is no overlap between the stress ranges of interest. The obtained data are intended to be applied to the fatigue assessments of the equipment operating at the frequency for up to 1010 cycles over years of continuous service.
ORCID iDs
Gorash, Yevgen ORCID: https://orcid.org/0000-0003-2802-7814, Comlekci, Tugrul ORCID: https://orcid.org/0000-0002-7892-7960, Styger, Gary, Kelly, James, Brownlie, Frazer ORCID: https://orcid.org/0000-0002-3087-090X and Milne, Lewis ORCID: https://orcid.org/0000-0001-6551-1264;-
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Item type: Article ID code: 84367 Dates: DateEvent22 February 2023Published20 February 2023AcceptedSubjects: Technology > Mechanical engineering and machinery Department: Faculty of Engineering > Mechanical and Aerospace Engineering Depositing user: Pure Administrator Date deposited: 23 Feb 2023 10:42 Last modified: 18 Oct 2024 00:42 URI: https://strathprints.strath.ac.uk/id/eprint/84367