Browsing by Subject "stop Co-Cr-W-Mo"

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Access status: Open Access ,
Druk 3D i mikromodyfikacje stopu Co-Cr-W-Mo. Nowa generacja stomatologii cyfrowej
(Wydawnictwa AGH, 2024) Augustyn-Nadzieja, Joanna; Gut, Wiktoria
The advent of 3D printing technology in the prosthetics sector makes it possible to accurately reproduce a patient’s specific case of missing teeth, without generating material waste. Due to its precision and accuracy, the technique of selective fusion of metal powders DLMS (direct metal laser sintering) is increasingly being used. The research that was carried out within the scope of the presented work consisted in the evaluation of the influence of 3D printing parameter variation and heat treatment on the properties of a dental Co-Cr alloy with tungsten and molybdenum micro-additives. The metallic specimens used in the study were fabricated in the prosthetic laboratory by a dental technician using DMLS technology from Ador’s Co-Cr-W-Mo Adorbond CC metallic powder with a variable 3D printing parameter, i.e. layer printing thicknesses of 20 μm and 30 μm, respectively. The samples were then heat treated (annealed at 1150°C for 1 h). In this study, microstructural analysis using light microscopy (LM) and scanning electron microscopy (SEM) was compared and performed along with microanalysis of the chemical composition using energy-dispersive spectroscopy (EDS) for all the tested samples produced with print layer thicknesses of 20 and 30 μm before and after heat treatment.