Tribological properties of Al2O3 layers after thermo-chemical treatment
Authors:
- Mateusz Kamil Niedźwiedź,
- Władysław Skoneczny,
- Marek Piotr Bara,
- Vladimír Bulej
Abstract
The article presents the influence of the thermo-chemical treatment of Al2O3 layers on their tribological proper-ties. The Al2O3 layers were produced on the EN AW-5251 aluminium alloy by means of direct current anodizing in a three-component electrolyte. For the sake of comparison, some of the samples were thermochemically treated in three liquids (sodium sulphate solution, sodium dichromate solution, distilled water). The parameters of the pro-duction and thermo-chemical treatment were selected on the basis of two Hartley's plans. The tribological proper-ties were determined on the basis of a tribological test carried out for a pin-on-disc friction pair on a T-17 tester in reciprocating motion. The tests were carried out in conditions of technically dry friction. Thanks to the tests, coeffi-cient of friction µ and the mass wear, together with the intensity of the material wear were determined. The use of thermo-chemical treatment in the sodium dichromate solution contributed to an increase in coefficient of friction μ and a reduction in the wear intensity of the polymer from 36 μg/km (layer without thermo-chemical treatment) to 21.33 μg/km (layer after thermo-chemical treatment in the sodium dichromate solution).The conducted stereomet-ric tests before and after the tribological test for selected samples allow the authors to state that the thermo-chemical treatment in the sodium dichromate solution increases the amplitude parameters of surface roughness. The study of the surface morphology of the layer with the lowest mass wear showed the formation of an additional sub-layer as a result of thermo-chemical treatment carried out in the sodium dichromate solution.
- Record ID
- USL6e214406c67f43469fa6d98cb5d8afd3
- Author
- Journal series
- Tribologia: Finnish Journal of Tribology, ISSN 0780-2285
- Issue year
- 2022
- Vol
- 39
- No
- 1-2
- Pages
- 4-16
- Keywords in English
- Al2O3 layers; thermo-chemical treatment; tribological properties; coefficient of friction; mass wear
- ASJC Classification
- ; ; ;
- DOI
- DOI:10.30678/fjt.109312 Opening in a new tab
- Handle.net URL
- hdl.handle.net/20.500.12128/23342 Opening in a new tab
- Language
- eng (en) English
- License
- File
-
- File: 1
- Tribological properties of Al2O3 layers after thermo-chemical treatment, File Niedzwiedz_Tribological_properties_of_Al2O3_layers_after_thermo_chemical.pdf / 11 MB
- Niedzwiedz_Tribological_properties_of_Al2O3_layers_after_thermo_chemical.pdf
- publication date: 06-02-2024
- Tribological properties of Al2O3 layers after thermo-chemical treatment, File Niedzwiedz_Tribological_properties_of_Al2O3_layers_after_thermo_chemical.pdf / 11 MB
-
- Score (nominal)
- 70
- Score source
- journalList
- Score
- = 70.0, 19-03-2024, ArticleFromJournal
- Publication indicators
- Citation count
- 1
- Uniform Resource Identifier
- https://opus.us.edu.pl/info/article/USL6e214406c67f43469fa6d98cb5d8afd3/
- URN
urn:uni-kat-prod:USL6e214406c67f43469fa6d98cb5d8afd3
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.