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Mechanical and Tribological Properties of W(100-x)%Cx% Coatings Deposited by DC Magnetron Sputtering

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Abstract:

W(100-x)%Cx% coatings with different tungsten and carbon contents were deposited by unbalanced magnetron sputtering. The microstructures and mechanical properties of the W(100-x)%C x% coatings was characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), nanoindentation and adhesion testing techniques. The tribological performance of the coatings was investigated using a pin-on-disc trobometer under dry conditions. Experimental results indicated that coating microstructure, mechanical properties and wear resistance varied according to the tungsten and carbon contents of the coatings. The W72%C28% coating had the highest hardness/elastic modulus (H/E) ratio. In the ball-on-disc wear tests, it was found that the W72%C28% coating exhibited the best wear resistance.

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Periodical:

Key Engineering Materials (Volume 642)

Pages:

184-189

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.642.184

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Online since:

April 2015

Authors:

Yean Liang Su, Yueh Feng Lin*

Keywords:

Carbon, Magnetron Sputtering, Mechanical Property, Tribological Properties, Tungsten

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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