Effect of heat treatment on the structural properties of tungsten carbide coatings deposited by RF magnetron sputtering

Zaidi, B.; Khechba, Mourad; Shekhar, Chander; Saouane, I.; Li, Rui

doi:10.1007/s00170-016-9171-6

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…For samples annealed between 900 and 1000 ° C, the microhardness is considerable at the surface, whereas on the plates, it decreases but does not reach the value 200 Kg / mm 2 . This is mainly due to the presence of tungsten carbides at the interface (coating / substrate), as evidenced by X-ray diffraction [9]. Fig.…”

Section: Resultsmentioning

confidence: 89%

“…The thickness of the tungsten carbide coatings is about 5 μm approximated from the time of the deposition. The as deposited samples [W (5 μm)/XC70] were heat treated in vacuum at temperature range (500-1000 °C) for 25 min [9]. Thereafter the films were subjected to the microhardness measurements by Vickers micro-hardness tester applying the load in the range of between 10 g and 1000 g. Similar procedure were adopted to characterize the thin films at different annealing temperatures applied load and the penetration depth of the indenter.…”

Section: Methodsmentioning

confidence: 99%

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Effect of Annealing Temperature on the Microhardness of Tungsten Carbide Coatings

Khechba¹,

Zaidi²,

Shekhar³

et al. 2017

European Mechanical Science

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A systematic study on the effect of annealing temperature on the hardness of Tungsten carbides (WC) coatings were deposited by RF magnetron sputtering onto steel substrate (XC70) was carried out in this study. The as deposited coatings were heat treated in vacuum at temperature range between 500-1000 °C for 25 minutes. The mechanical properties of these coatings were investigated by Vickers microhardness tests at different applied loads and penetration depth of the indenter into the coatings. The microhardness tests were carried out as a function of applied loads between 10-1000 g, annealing temperature in the range of 500-1000 °C, and penetration depth of the indenter up to 25 μm. The microhardness of the coatings was found to decrease as a function of applied load and the penetration depth. The microhardness initially increases and thereafter decreases as the annealing temperature increases.

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Section: Resultsmentioning

confidence: 89%

Section: Methodsmentioning

confidence: 99%