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Effect of MAO coatings on cavitation erosion and tribological properties of 5056 and 7075 aluminum alloys
Abstract
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.
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Authors (4)
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Aleksandr Komarov
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Łukasz Bolewski Mgr inż.
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
WEAR
no. 474-475,
ISSN: 0043-1648 - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Szkodo M., Stanisławska A., Komarov A., Bolewski Ł.: Effect of MAO coatings on cavitation erosion and tribological properties of 5056 and 7075 aluminum alloys// WEAR -Vol. 474-475, (2021), s.203709-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.wear.2021.203709
- Verified by:
- Gdańsk University of Technology
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