Evaluation of corrosion resistance of Co-Cr alloys fabricated with different metal laser sintering systems

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dc.authorscopusid14834463600
dc.authorscopusid56387030200
dc.authorscopusid57217294335
dc.authorscopusid14834262900
dc.authorscopusid6508358903
dc.contributor.authorTuna, Süleyman Hakan
dc.contributor.authorKaraca, Erhan
dc.contributor.authorAslan, İsmail
dc.contributor.authorPekkan, Gürel
dc.contributor.authorÖzçiçek Pekmez, Nuran
dc.date.accessioned2022-05-11T14:28:18Z
dc.date.available2022-05-11T14:28:18Z
dc.date.issued2020
dc.departmentFakülteler, Diş Hekimliği Fakültesi, Klinik Bilimler Bölümü
dc.description.abstractPURPOSE. The aim of this study was to evaluate the corrosion resistance of the specimens produced by five different commercial metal laser sintering (MLS) systems with their recommended Co-Cr alloy powders. MATERIALS AND METHODS. The MLS machines and the alloy powders used were, ProX 100-ST2724G (St-Pro), Mysint 100-EOS SP2 (SP2-Mys), EOSINT 270-EOS SP2 (SP2-EOS), SLM 100-Starbond CoS (SB-SLM), and MLab Cusing-Remanium® Star (RS-MLab), respectively. Eight specimens from each group were prepared. Open circuit potential (Eocp) and electrochemical impedance spectroscopy (EIS) measurements of polished surfaces of the specimens were conducted in a three-electrode cell using a potentiostat-galvanostat in Fusayama-Meyer artificial saliva (AS). Specimens from each group were immersed in AS and de-ionized water for seven days. Eocp, charge transfer resistance (Rct) values, and released ions (?g/cm2 x 7d) in different solutions were determined. The specimen surfaces were observed with SEM/EDS. Results were analyzed statistically. RESULTS. Eocp values have shifted to potentials that are more positive over time. Steady-state Eocp values were from high to low as follows, SB-SLM, SP2-Mys, SP2-EOS, RS-MLab, and ST-Pro, respectively. After 60 mins, RS-MLab specimens had the highest Rct value, followed by SP2-Mys, SB-SLM, SP2-EOS, and ST-Pro. In all groups, ion release was higher in AS than that in de-ionized water. CONCLUSION. There were small differences among the corrosion resistances of the Co-Cr alloy specimens produced with MLS systems; meanwhile, the corrosion resistances were quite high for all specimens. © 2020 The Korean Academy of Prosthodontics.
dc.identifier.doi10.4047/jap.2020.12.3.114
dc.identifier.endpage123
dc.identifier.issn2005-7806
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85087003324
dc.identifier.scopusqualityQ1
dc.identifier.startpage114
dc.identifier.urihttps://doi.org/10.4047/jap.2020.12.3.114
dc.identifier.urihttps://hdl.handle.net/20.500.11776/6762
dc.identifier.volume12
dc.indekslendigikaynakScopus
dc.institutionauthorPekkan, Gürel
dc.language.isoen
dc.publisherKorean Academy of Prosthodontic
dc.relation.ispartofJournal of Advanced Prosthodontics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectCo-Cr alloy
dc.subjectCorrosion
dc.subjectMetal laser sintering
dc.subjectPowder
dc.titleEvaluation of corrosion resistance of Co-Cr alloys fabricated with different metal laser sintering systems
dc.typeArticle

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