CARACTERIZAÇÃO DE PÓS DE NÍQUEL OXIRREDUZIDO E TITÂNIO HDH PARA USO EM MANUFATURA ADITIVA VIA DEPOSIÇÃO POR ENERGIA DIRECIONADA (DED)

The additive manufacturing (AM) process is a technique that enables integrated device production and is applicable in various industrial fields.Furthermore, the shape memory NiTi alloy parts and components production in this process presents attractive processing options, challenging conventional manufacturing routes, particularly with regard to the Directed Energy Deposition (DED) method.However, the physical and chemical characteristics of the powder used as raw material have a significant impact on the fusion and interaction with the laser or plasma beam, which ultimately influences the final properties of the manufactured material.Therefore, this study aims to investigate the characteristics of Ni oxirreduced and Ti HDH (hidrateddehidrated) powders, such as particle size, particle distribution, chemical composition and structural characteristics, through Scanning Electron Microscopy, Feret circularity and aspect ratio, X-ray Fluorescence, and X-ray Diffraction analyses, in order to conduct future work to criticize the use of these individually and in an equiatomic mixture, and process parameters adjustments to make them compatible with the DED method.