THE WAYS OF INCREASING WEAR RESISTANCE ABILITY OF WC – Co HARD ALLOY
https://doi.org/10.17073/0368-0797-2015-5-341-345
Abstract
The paper presents the new knowledge about influence of zirconium
as an ingredient of ionic-plasma (Ti, Zr)N coating which was spread on VK10 KS alloy. Ionic-plasma (Ti, Zr)N coating was spread with the use of “Kvant-6” equipment and separate cathodes made from 50 % Ti + 50 % Zr. N2 was used as a reaction gas. In this case two cathodes made from TiN were situated in the chamber of the equipment one against another but the cathode made from ZrN was between them. It was found out that introduction of zirconium into composition of the coating leads to increase of nanohardness as much as 23 % up to 38 500 MPa and Young’s modulus – as much as 67 %, which characterizes the increase of energy of atomic bonds and materials strength. Also it leads to increase of antifriction ability and decrease of friction constant of coating up to μ = 0.07, satisfactory adhesive strength of coating, i.e. generally improves the service features of the whole alloy.
About the Author
T. N. Oskolkova
Siberian State Industrial University 42, Kirova str., Novokuznetsk, Kemerovo Region, 654007, Russia
Russian Federation
Russian Federation
T.N., Cand. Sci. (Eng.), Assist. Professor, Deputy Head of the Chair “Metal Forming and Metal Science. OJSC “EVRAZ ZSMK”
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Review
For citations:
Oskolkova T.N. THE WAYS OF INCREASING WEAR RESISTANCE ABILITY OF WC – Co HARD ALLOY. Izvestiya. Ferrous Metallurgy. 2015;58(5):341-345. (In Russ.) https://doi.org/10.17073/0368-0797-2015-5-341-345
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