Original scientific paper

Sliding Wear of Coated Prealloyed Sintered Chromium Steel

Robert Bidulsky orcid.org/0000-0002-8716-7844 ; Technical University of Košice, Faculty of Metallurgy, Vysokoškolská 4, 042 00 Košice, Slovakia
Jana Bidulska ; Technical University of Košice, Faculty of Metallurgy, Vysokoškolská 4, 042 00 Košice, Slovakia
Marco Actis Grande ; Politecnico di Torino, Department of Applied Science and Technology, Viale T. Michel 5, 15100 Alessandria, Italy

Abstract

The present paper deals with the sliding wear behaviour of prealloyed chromium sintered steel with graphite powder added in the amount of 0.7 %. The wear characteristics, such as profilograms, wear tracks morphology and wear curves of the sintered specimens and Physical Vapour Deposition (PVD) coated were investigated through pinon-disk tests. The specimens were sintered in pusher furnace at the temperature of 1180 °C for 40 minutes in an atmosphere of 25 % H2+75 % N2. The results of profilograms, the wear curves and the wear tracks showed positive effect of coating on the wear resistance of the tested specimens.

Keywords

Powder Metallurgy Sliding Wear; Physical Vapour Deposition Microstructure

Hrčak ID:

121559

URI

https://hrcak.srce.hr/121559

Publication date:

22.4.2013.

Article data in other languages: croatian

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