Effect of Annealing Temperature on the Microhardness of Tungsten Carbide Coatings

Authors : Mourad Khechba, Beddiaf Zaidi, Chander Shekhar, Maria Plamenova Nikolova

Pages : 17-19

Doi:10.26701/ems.339309

View : 14 | Download : 9

Publication Date : 2018-03-20

Article Type : Research

Abstract :Tungsten carbides (WC) coatings have been deposited by RF magnetron sputtering onto steel substrate (XC70) temperature in the range of 500-1000 °C under vacuum for 25 minutes. The mechanical properties of WC were investigated by the measurements of microhardness by Vickers tests. We carried out microhardness tests with loads varying between 10 g and 1000 g, and the variations of the microhardness of our samples were followed as a function of the annealing temperature, the applied load and the penetration depth of the indenter.
Keywords : Microhardness, WC, steel (XC70), Coating