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Title:Comparison of the corrosion properties of CoCrMo dental alloys in artificial saliva
Authors:ID Kosec, Tadeja (Author)
ID Bajt Leban, Mirjam (Author)
ID Kurnik, Matej (Author)
ID Kopač, Igor (Author)
Files:URL URL - Source URL, visit https://mater-tehnol.si/index.php/MatTech/article/view/283
 
.pdf PDF - Presentation file, download (551,43 KB)
MD5: 039F2D00CC97DA4E68FCAD0F92859337
 
Language:Slovenian
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
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
Publication status:Published
Publication version:Version of Record
Publication date:10.12.2021
Publisher:Inštitut za kovinske materiale in tehnologije
Year of publishing:2021
Number of pages:str. 819-824
Numbering:Letn. 55, št. 6
PID:20.500.12556/DiRROS-15878 New window
UDC:620.193:544.6:616.314:669.018.8:66.017
ISSN on article:1580-2949
DOI:10.17222/mit.2021.283 New window
COBISS.SI-ID:89933571 New window
Copyright:© MATERIALI IN TEHNOLOGIJE
Note:Nasl. v angl. in slov., besedilo v angl.;
Publication date in DiRROS:02.12.2022
Views:258
Downloads:106
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Record is a part of a journal

Title:Materiali in tehnologije
Shortened title:Mater. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1580-2949
COBISS.SI-ID:106193664 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:L2-1831
Name:Implementacija aditivnih tehnologij v stomatološki protetiki

Licences

License:Other
Description:The journal MATERIALI IN TEHNOLOGIJE/MATERIALS AND TECHNOLOGY is an open access journal, this means its free availability on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles, crawl them for indexing, pass them as data to software, or use them for any other non-commercial purposes, without financial, legal, or technical barriers other than those inseparable from gaining access to the internet itself. The only constraint is on reproduction, and the only role for copyright in this domain, should be to give authors control over the integrity of their work and the right to be properly acknowledged and cited.

Secondary language

Language:English
Title:Primerjava korozijskih lastnosti CoCrMo dentalnih zlitin v umetni slini
Abstract:CoCrMo-zlitine so znane po svojih biokompatibilnih lastnostih, ki jih zaradi ugodnih mehanskih lastnosti vse pogosteje uporabljamo v zobozdravstvu. Z razvojem selektivnega laserskega taljenja (SLT) se je zanimanje za izdelavo 3D tiskanih predmetov in preučevanje korozijskih lastnosti teh zlitin povečalo tudi v stomatološki protetiki. V študiji je bila preučevana CoCrMoW-zlitina v umetni slini pri telesni temperaturi 37 °C. Izbrane so bile različne oblike zlitin CoCrMoW: originalni referenčni vzorec dostavljen od dobavitelja, kovinski ulitek, pridobljen z ustaljenim postopkom v zobotehničnem laboratoriju in dva 3D vzorca iz prahu CoCrMoW, ki sta bila izdelana z uporabo metode selektivnega laserskega taljenja. Izvedene so bile elektrokemijske in metalografske preiskave z merjenjem trdote. Ugotovljeno je bilo, da imata referenčni in ulit material podobne mikrostrukturne in elektrokemijske lastnosti, medtem ko imajo vzorci 3D tiska različne elektrokemijske lastnosti, najverjetneje zaradi učinka večje mikro poroznosti in kemijske sestave zlitin.
Keywords:CoCrMo dental alloy, artificial saliva, additive technology, precision casting, corrosion


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