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Abstract
A number of engineering structures fail due to the fatigue damage resulting from cyclic mechanical stress. However, as far as organic coatings are concerned this degradation factor remains underestimated. In the paper the authors propose a methodology combining global electrochemical impedance spectroscopy and local atomic force microscopy measurements for evaluation of coating resistance to an impact of repetitive mechanical stress. Typical epoxy coating designated for ship hull protection has been tested in as-received state as well as after preexposure to elevated temperature. Application of atomic force microscopy-based approach helped to reveal and spatially localize the spots of organic coating degradation onset. The mechanism and process of defect formation and propagation has been shown on a microscopic scale.
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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PROGRESS IN ORGANIC COATINGS
no. 146,
ISSN: 0300-9440 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Szociński M., Darowicki K.: Performance of organic coatings upon cyclic mechanical load// PROGRESS IN ORGANIC COATINGS -Vol. 146, (2020), s.105718-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.porgcoat.2020.105718
- Verified by:
- Gdańsk University of Technology
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