Wires with diameter 0.25 mm from a carbon steel with 0.70 and 0.90% C for tire cords are studied. The effect of the treatment modes, of the carbon content and of the morphology of pearlite on the fatigue resistance of the wires under pure bending tests at a frequency of 10 Hz is determined. The fracture mechanism of the wires is considered. The influence of the microstructure and of the composition of the wires on the trajectory of fatigue cracks is determined with the help of scanning electron microscopy.
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The authors are much obliged to the Bekaert Izmit Steel Cord Industry and Trade Inc. Technology Department, to the Scientific and Technological Research Council of Turkey (1005 – National New Ideas and Products R & D Funding Program coded as 117M102) and to the Karabuk University Coordination of Scientific Research Projects (BAP) (Project Code KBÜ-BAP-1512-DR-023) for supplying the steel wires and supporting this work financially.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 18 – 24, November, 2019.
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Koymatcik, H., Ahlatci, H., Sun, Y. et al. Pure Bending Fatigue Crack Propagation in Deep-Drawn Steel Cord Filaments. Met Sci Heat Treat 61, 691–697 (2020). https://doi.org/10.1007/s11041-020-00484-6
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DOI: https://doi.org/10.1007/s11041-020-00484-6