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Improvement of cavitation erosion resistance of structural metals by alternating magnetic field treatment
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SYSNO ASEP 0573484 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Improvement of cavitation erosion resistance of structural metals by alternating magnetic field treatment Author(s) Babutskyi, A. (GB)
Akram, S. (GB)
Bevilacqua, M. (GB)
Chrysanthou, A. (GB)
Montalvão, D. (GB)
Whiting, M. J. (GB)
Pizúrová, Naděžda (UFM-A) RID, ORCIDNumber of authors 7 Article number 111630 Source Title Materials and Design. - : Elsevier - ISSN 0264-1275
Roč. 226, FEB (2023)Number of pages 18 s. Language eng - English Country GB - United Kingdom Keywords Magnetic field treatment ; Cavitation Erosion ; Dislocation mobility ; Precipitation Subject RIV JG - Metallurgy OECD category Materials engineering Research Infrastructure CzechNanoLab - 90110 - Vysoké učení technické v Brně Method of publishing Open access Institutional support UFM-A - RVO:68081723 UT WOS 001024422900001 EID SCOPUS 85149752418 DOI 10.1016/j.matdes.2023.111630 Annotation Results of cavitation erosion tests for EN8 steel, nickel-aluminium bronze (NAB), 70/30 brass and aluminium alloy AA2014-T6 following alternating magnetic field (AMF) treatment are presented. These alloys were selected because of their magnetic nature, EN8 steel is ferromagnetic, NAB and 70/30 brass are diamagnetic and AA2014 alloy is paramagnetic. The indirect cavitation erosion tests (ASTM G32–10 standard) were fulfilled at a frequency of 20 kHz in deionized water which was maintained at room temperature and ambient pressure for a predetermined time. The results show significant decrease in the mass loss for all samples that had underg1 AMF treatment. The eroded samples were characterised by means of scanning electron microscopy, while microhardness measurements showed an increase in the surface hardness as a result of the AFM treatment. The results of X-ray diffraction indicated formation of more compressive residual stresses following treatment, while examination by transmission electron microscopy showed evidence of dislocation movement away from grain boundaries. In the case of the NAB and 20014-T6 alloys, there was evidence of new precipitation. By considering the deformed state and the magnetic nature of each alloy, mechanisms explaining the increase in the cavitation erosion resistance due to the treatment are proposed and discussed. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S026412752300045X?via%3Dihub
Number of the records: 1