izvorni znanstveni rad
Titanium alloys have an extremely favorable combination of mechanical and physical properties,
as well as good corrosion resistance and biocompatibility, making them widely applicable in a
variety of industries. Additive manufacturing of titanium alloys eliminates the drawbacks of
traditional manufacturing methods in producing complex geometric products, characterized by
high costs of raw and waste materials and difficult machinability. By using the Plasma Assisted
Chemical Vapour Deposition (PACVD) process it is possible to enhance the hardness and wear
resistance of titanium alloys through the application of hard coatings. The influence of
machining operations on the surface quality of Electron Beam Melted (EBM) titanium alloy, and
its suitability for PACVD coatings has been investigated in this work. After coating samples of
additively and conventionally produced Ti6Al4V alloy with PACVD TiN coating, the adhesion of
the coating was tested according to VDI 3198 method, the coating thickness was measured by
calotest, and the nanohardness was evaluated according to EN ISO 14577-2:2002 standard.
additive manufacturing; Ti6Al4V, EBM, PACVD, TiN
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