Comparative Analysis of the Resistance to Cavitation Erosion of Materials Samples of Ultrasonic Instruments

摘要

The article presents the results of a study of cavitation resistance of two methods of surface hardening materials, which lays in applying ceramic coatings on aluminum alloy 6060. The first sample obtained using the technology of microarc oxidation (MAO), the second with the help of technology detonation spraying (DS). The ultrasonic device (UD) was used to study cavitation erosion resistance. Analyses of mass loss, morphology of the surface after the cavitation test was examined by using analytical scales and scanning electron microscopy. The results show that the microstructure of MAO coating, compared to DS is more homogeneous, that allows increasing the cavitation erosion resistance of aluminum alloy.