Izvorni znanstveni članak

https://doi.org/10.21278/TOF.44103

Tribological Properties of Coatings Applied on Near-Nano and Nanostructured WC-Co Hardmetals by Using Plasma-Assisted Chemical Vapour Deposition Technique

Matija Sakoman ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
Danko Ćorić ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
Tamara Aleksandrov Fabijanić ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
Saša Kovačić ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia

Sažetak

Samples of nanostructured hardmetals were sintered as a substrate material by applying two different powder metallurgy processes. The starting powders had an average grain size from 95 um to 150 um. The plasma-assisted chemical vapour deposition technique was used for the deposition of coatings and two coating systems, i.e. the 2 um titanium nitride and 3.8 um titanium carbon nitride were produced. Scratch tests were conducted with an increasing load ranging from 5 to 200 N. Critical normal loads of coating delamination during the scratch tests were registered. The sliding wear resistance was investigated with a ball-on-disc test. The ball-on-disc test showed that the porosity of the sintered product had the highest impact on the wear volume loss. Nanostructured hardmetals showed a great potential for application of plasma-assisted chemical Vapour deposition.

Ključne riječi

plasma-assisted chemical vapour deposition; titanium nitride; titanium carbon nitride; hardmetals; cemented carbides

Hrčak ID:

236878

URI

https://hrcak.srce.hr/236878

Datum izdavanja:

6.5.2020.

Posjeta: 1.526 *