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Chair of Engineering Materials, Faculty of Naturals Sciences and Engineering, University of Ljubljana , Ljubljana , Slovenia
Faculty of Natural Sciences and Engineering, University of Ljubljana , Ljubljana , Slovenia
University of Ljubljana , Ljubljana , Slovenia
University of Ljubljana , Ljubljana , Slovenia
University of Ljubljana , Ljubljana , Slovenia
University of Ljubljana , Ljubljana , Slovenia
Titanium and its alloys, particularly Ti6Al4V, are widely used, especially in aerospace and
medicine due to their relatively low density, high strength, and good corrosion resistance. However,
there are formidable challenges in casting, forming, and machining titanium alloys, which result in
final products that are considerably more expensive. Additive manufacturing is considered one of
the most promising technologies for metallic materials due to its ability to produce complex
geometries with high density and accuracy in a short amount of time. It allows the manufacturing
of products with complex geometries that cannot be made with traditional metallurgical processes.
One of the most widely used technologies for alloys is selective laser melting (SLM).
The most favourable conditions to be used during SLM process for Ti6Al4V alloy powder have been
determined in this research. This was done by using process maps and the effect of different process
parameters on the mechanical properties and microstructure of SLM samples from Ti6Al4V alloy
powder. Three different laser powers and four different scanning speeds were used and the process
maps of hardness and porosity were created. With these results, the optimal parameters with the
highest hardness and the lowest fraction of porosity in the SLM Ti6Al4V samples were determined.
additive manufacturing, selective laser melting, Ti6Al4V alloy, mechanical properties, microstructure
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