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Comparison of the corrosion properties of CoCrMo dental alloys in artificial salivaTadeja Kosec,
Mirjam Bajt Leban,
Matej Kurnik,
Igor Kopač, 2021, original scientific article
Abstract: CoCrMo alloys are known for their biocompatible properties, which, together with their favorable mechanical properties, mean they can be efficiently used in dentistry. With the development of selective laser melting for the fabrication of 3D-printed ob - jects, interest in the corrosion properties of this alloy has risen in the field of prosthodontics. In the study, CoCrMoW dental al - loys were studied in artificial saliva at body temperature, i.e., 37 °C. Different forms of CoCrMoW alloy were selected: a refer - ence sample, i.e., original material as received from the supplier, a cast sample acquired from an ordinary procedure in a dental laboratory, and two 3D-printed samples made from CoCrMoW powder using the selective laser melting (SLM) method. Electro - chemical, spectroscopic and hardness measurements were conducted. It was shown that the reference and cast samples have similar microstructural and electrochemical properties, while the electrochemical properties of the 3D-printed samples differ, most probably due to the effect of the higher micro porosity and chemical composition of the alloys.
Keywords: CoCrMo dentalne zlitine, umetna slina, aditivne tehnologije, precizijsko ulivanje, korozija
Published in DiRROS: 02.12.2022; Views: 247; Downloads: 101
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