Abstract
This paper discusses the tribological performance of the bearing steel GCr15 treated by an alternating magnetic field. The wear test results showed that the average of wear mass losses decreased by nearly 80% after the magnetic treatment, compared to those before the magnetic treatment. The micro-hardness and microstructures (i.e., grain size, carbide morphology and dislocation distribution) before and after the magnetic treatment were experimentally investigated, and the mechanism of the tribological performance improvement of the bearing steel GCr15 due to the magnetic treatment was then revealed based on the above results.
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Acknowledgements
This project is supported by the National Natural Science Foundation of China (Grant Nos. 51305317 and 51675392), the Natural Science Foundation of Hubei Province of China (Grant No. 2014CFA119) and the Special Project of Technological Innovation of Hubei Province (Grant No. 2016AAA053).
We also show our thanks to the MatProFuture Project.
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Song, YL., Yu, C., Miao, X. et al. Tribological Performance Improvement of Bearing Steel GCr15 by an Alternating Magnetic Treatment. Acta Metall. Sin. (Engl. Lett.) 30, 957–964 (2017). https://doi.org/10.1007/s40195-017-0587-2
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DOI: https://doi.org/10.1007/s40195-017-0587-2