Effect of annealing treatment to improve TiC coating surface properties

Lazhar Mohammedi 2Rachid Gheriani 2Rachid Halimi 1

1. Université de Constantine, Laboratoire des Couches Minces et Interfaces, Laboratoire des Couches Minces et Interfaces, Route de Ain El-Bey, Constantine 25000, Algeria
2. Laboratory of Materials Physic. University of Ouargla (LMP), OUargla, Ouargla 30000, Algeria


The improvement of physical and mechnical surface proprerties takes a good place today. In the present work we prepared TiC coating by indirect method, using magnetron sputtering. The titanium is deposited on high carbon steel substrates (X210Cr12), and followed by annealing in vaccum from 400C to 1000C to transform titanium to titanium carbide coating. The formation of TiC coating and the interdiffusion of C, Fe and Ti between the coating and substrate were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Auger electron spectroscopy (AES) and hardness measurements. XRD reveals the formation of TiC at 700C. SEM and AES show the interdiffusion of C, Fe and Ti at high temperatures. It was noted that the formation of TiC coating is consistent with the high value of hardness which is larger than the bulk value.

Key words: thin films, hard coatings, titanium carbide, interdiffusion, titanium

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Presentation: poster at E-MRS Fall Meeting 2005, Symposium F, by Lazhar Mohammedi
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-05-15 15:07
Revised:   2009-06-07 00:44
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