Abstract
The purpose of this study was to investigate the role of different welding techniques: laser and tungsten inert gas (TIG) on the corrosion behavior of commercially pure titanium (cp-Ti) frameworks in dentistry. Electrochemical tests were conducted in artificial saliva at pH 7.2, 37°C. The surfaces were examined using scanning electron microscopy. The received data were analyzed by one-way ANOVA followed by Tukey’s test for multiple comparisons (α = 0.05). Cp-Ti frameworks welded by TIG were found to be more susceptible to corrosion, where defects in the weld region appeared to be the most important factor for the corrosion behavior. These findings suggested a better corrosion behavior for the laser welding procedure.
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ACKNOWLEDGMENTS
The authors express their gratitude to University of Minho, Portugal, for the facilities offered during research.
Funding
The authors acknowledge the support of: São Paulo Research Foundation, Brazil, for the PhD scholarship provided to S.A. Rodrigues (grant #2013/21553-7); by the Foundation for Science and Technology, Portugal, with the reference project UID/EEA/04436/2013; and the European Regional Development Fund through the COMPETE 2020—Programa Operacional Competitividade e Internacionalização with the reference project POCI-01-0145-FEDER-006941. A.C. Alves and F. Toptan acknowledge the financial support through the M-ERA-NET/0001/2015 project.
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Rodrigues, S.A., Alves, A.C., Silva, F.S. et al. Corrosion Behavior of Titanium Frameworks under Laser and Tungsten Inert Gas Weldings: Applications in Dentistry. Surf. Engin. Appl.Electrochem. 56, 358–364 (2020). https://doi.org/10.3103/S106837552003014X
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DOI: https://doi.org/10.3103/S106837552003014X