Deposición de láser pulsado de hidroxiapatita en Ti-6Al-4V producido por manufactura aditiva

Abstract

In this work, the mechanical properties, chemical composition, and surface morphology of hydroxyapatite coatings deposited by pulsed laser deposition on Ti6Al4V substrates manufactured by electron beam melting, varying the deposition energy, were studied. The microindentation and indentation tests carried out following the ASTM E384-17 standard allowed to obtain average hardness and microhardness values. Scanning electron microscopy was used to evaluate the substrate coating properties, thus, obtaining average grain size values of the hydroxyapatite coating. Chemical composition resulted from energy-dispersive X-ray spectroscopy analysis. Important characteristics that indicate the incidence of deposition parameters regarding the mechanical and morphological properties of the biocompatible coating on parts produced by additive manufacturing for use in bone implants were evaluated.

Keywords

• Deposición por láser pulsado
• recubrimiento de hidroxiapatita
• titanio
• Ti-6Al-4V
• EBM
• manufactura aditiva