Effect of MAO coatings on cavitation erosion and tribological properties of 5056 and 7075 aluminum alloys
| Autor: | Łukasz Bolewski, Alicja Stanisławska, Marek Szkodo, Aleksandr Komarov |
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| Rok vydání: | 2021 |
| Předmět: |
Toughness
Materials science Scanning electron microscope Delamination 02 engineering and technology Surfaces and Interfaces Tribology Nanoindentation 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials visual_art Cavitation Materials Chemistry visual_art.visual_art_medium Ceramic Surface layer Composite material 0210 nano-technology |
| Zdroj: | Wear. :203709 |
| ISSN: | 0043-1648 |
| Popis: | Two ceramic coatings have been applied on 5056 and 7075 aluminum alloy by microarc oxidation (MAO) technology. The mass losses, surface morphologies and the phase constituents of the MAO coatings before and after cavitation tests were examined by means of digital scales, scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. In order to assess the impact of the mechanical properties of the surface layer on cavitation erosion resistance, hardness (H), reduced Young's modulus (E), surface elastic properties (Wel), surface toughness (KIC), structure continuity and resistance to delamination and cohesion forces were determined using nanoindentation and scratch tests. The results indicate that there is a correlation between cavitation erosion resistance and hardness, H/E ratio and surface elasticity. |
| Databáze: | OpenAIRE |
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