Selective Laser Melting of Ti-6Al-4V Alloy: Correlation Between Processing Parameters, Microstructure and Corrosion Properties

Additive Manufacturing technology has continually advanced, allowing microstructure and property optimization. In recent years, several studies have been carried out with the aim of understanding mechanisms formation evolution and, consequently, their influence on mechanical properties. However, correlations between corrosion properties are not completely understood, making more systematic investigations necessary. this work, samples Ti-6Al-4V alloy were produced by combining different laser powers scanning speeds in order to generate energy density values (VED) subsequent microstructures The characterized optical electron microscopy, hardness relative density. Complementarily, tests out. For entire set parameters used, processed showed acicular martensite α´, followed levels porosity depending applied VED proved be an important control parameter, best combinations resistance obtained for parameter ratio that generated densities greater than 100 J/mm3.