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Effect of plasma sprayed and laser re-melted Al2O3 coatings on hardness and wear properties of stainless steel
Abstract
Commercially available austenic stainless steel substrate was coated with commercially available, raw Al2O3 powder applied by means of plasma spraying method and then re-melted with CO2 laser beam of various parameters. Tribological and mechanical properties of the 120 J/mm and 160 J/mm laser re-melted coatings were compared with the tribological and mechanical properties of the “as-sprayed” coating. The influence of the laser beam of various parameters on the microstructure, phase constituents, and mechanical and tribological properties of the ceramic coating was investigated by means of scanning electron microscopy, light microscopy, computer tomography, X-ray diffraction technique and nanoindentation tests. The micro sliding wear performance of the coatings was tested using a nanoindenter. The study showed an improvement of the mechanical and tribological properties caused by the laser treatment. The best results were achieved for coating re-melted with 120 J/mm laser beam.
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Authors (3)
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Anna Bień Dr Inż.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.ceramint.2016.04.044
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
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CERAMICS INTERNATIONAL
no. 42,
edition 9,
pages 11275 - 11284,
ISSN: 0272-8842 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Szkodo M., Bień A., Antoszkiewicz M.: Effect of plasma sprayed and laser re-melted Al2O3 coatings on hardness and wear properties of stainless steel// CERAMICS INTERNATIONAL. -Vol. 42, iss. 9 (2016), s.11275-11284
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.ceramint.2016.04.044
- Verified by:
- Gdańsk University of Technology
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