Resumo

CARDENASFLECHAS, Leydi Julieta; MEJIA-VILLAGRAN, Claudia Patricia; RINCON-JOYA, Miryam  e  OLAYA-FLOREZ, Jhon Jairo. Synthesis of nanostructured (Ti-Zr-Si)N coatings deposited on Ti6A14V alloy. Rev. acad. colomb. cienc. exact. fis. nat. [online]. 2021, vol.45, n.175, pp.570-581.  Epub 16-Set-2021. ISSN 0370-3908.  https://doi.org/10.18257/raccefyn.1198.

TiZrSiN coatings have important applications as corrosion barriers and thermal stabilizers. The addition of Si in TiZrN films helps increase hardness and thermal stability of the base coat. In this work thin films of (Ti-Zr-Si)N were deposited on the Ti6Al4V alloy by the co-sputtering technique and using Ti5Si2 and Zr targets. The synthesis of the coatings was carried out by varying the discharge power in the Ti5 well as a variation in the deposit temperature at room temperature 130° and 260°C. The coatings were characterized by means of X-ray diffraction (XRD), evidencing the formation of the phase that belongs to the solid solution (Zr, Ti)N, scanning electron microscopy (SEM), UV-Vis spectroscopy and hardness and pin-on-disc tests. The thickness was measured through interferometry with values between 662 and 481nm for the deposited coatings. According to the failure mechanism in the scratch test, the best results were obtained with a power of 170W and 260°C with a cohesive failure Lc1 = 2.1N and an adhesive failure Lc2 = 4.7N.

Palavras-chave : (Ti-Zr-Si)N; Ti6Al4V; Coatings; Co-sputtering; Nanostructures.

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