Composites reinforced by Al—Cu—Fe quasicrystalline particles with a copper matrix and their tribological properties

Copper-based composite coatings with addition of 34 wt % of Al—Cu—Fe quasicrystalline powder of dispersity less than 20 fum, as well as 70 wt % of quasicrystalline powder of dispersity less than 40fum and less than 3 fum, were produced by the cold spray process. The phase composition during annealin...

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Published in:Surface investigation, x-ray, synchrotron and neutron techniques x-ray, synchrotron and neutron techniques, 2010-11, Vol.4 (6), p.951-955
Main Authors: Shaitura, D. S., Teplov, A. A., Chikina, E. A., Klevachev, A. M., Efimochkin, I. Yu, Fedotov, S. V., Petrzhik, M. I., Levashov, E. A., Abuzin, Yu. A.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Materials Science
Surfaces and Interfaces
Thin Films
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Summary:Copper-based composite coatings with addition of 34 wt % of Al—Cu—Fe quasicrystalline powder of dispersity less than 20 fum, as well as 70 wt % of quasicrystalline powder of dispersity less than 40fum and less than 3 fum, were produced by the cold spray process. The phase composition during annealing of samples at various temperatures was studied by X-ray phase analysis. Tribological properties of each composite coating and pure copper were investigated. The experimental results showed a considerable improvement of the tribological properties of the material at the addition of quasicrystals. The least wear was observed in the composite sample containing quasicrystalline inclusions of less than 3 fum subjected to thermal treatment. In this case the counterbody wear was practically absent.
ISSN:1027-4510
1819-7094
DOI:10.1134/S1027451010060133