Electrochemical Corrosion Behavior of Dental/Implant Alloys in Artificial Saliva

The corrosion behavior and passive film characteristics of various dental alloys such as Co-Cr, Ni-Cr, Cu-Ni-Al, and commercially pure Ti (c.p. Ti) were evaluated in artificial saliva medium by utilizing electrochemical impedance spectroscopy (EIS), Tafel polarization, and cyclic polarization studie...

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Published inJournal of materials engineering and performance Vol. 17; no. 5; pp. 695 - 701
Main Authors Sharma, Mohit, Ramesh Kumar, A.V., Singh, Nirbhay, Adya, Nidhi, Saluja, Bobin
Format Journal Article
LanguageEnglish
Published New York Springer US 01.10.2008
Springer Nature B.V
Subjects
Characterization and Evaluation of Materials
Corrosion and Coatings
Engineering Design
Materials Science
Quality Control
Reliability
Safety and Risk
Tribology
corrosion
EIS study
dental alloys
artificial saliva
passive film
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Summary:The corrosion behavior and passive film characteristics of various dental alloys such as Co-Cr, Ni-Cr, Cu-Ni-Al, and commercially pure Ti (c.p. Ti) were evaluated in artificial saliva medium by utilizing electrochemical impedance spectroscopy (EIS), Tafel polarization, and cyclic polarization studies. EIS studies were carried out for various durations viz. 1 h, 1 day, and 7 days to evaluate the stability of passive film and change in corrosion characteristics with respect to time. Electrochemical parameters such as E corr , i corr , corrosion rate, passive film characteristics with respect to time were obtained from various studies mentioned above. The corrosion resistance decreased in the order Cu-Ni-Al > cp Ti > Co-Cr (Commercial) > Ni-Cr > Co-Cr (DRDO developed) in artificial saliva solution.
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ISSN:1059-9495
1544-1024
DOI:10.1007/s11665-008-9198-4