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Corrosion behavior in Ringer solution of several commercially used metal alloys

Carmen Marina Garcia-Falcon (Department of Mechanical Engineering, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain)
Tomas Gil-Lopez (Department of Building Technology, Madrid Polytechnic University, Madrid, Spain)
Amparo Verdu-Vazquez (Department of Building Technology, Madrid Polytechnic University, Madrid, Spain)
Julia Claudia Mirza-Rosca (Department of Mechanical Engineering, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain)

Anti-Corrosion Methods and Materials

ISSN: 0003-5599

Article publication date: 4 August 2021

Issue publication date: 19 August 2021

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Abstract

Purpose

This paper aims to analyze the corrosion behavior in Ringer solution of six commercially used Ni-based alloys that are present and commonly used as metallic biomaterials.

Design/methodology/approach

The specimens were received in the form of cylindrical ingots and were cut to get five samples of each brand with a cylindrical shape of 2 mm height to conduct the study. In this scientific research, the following techniques were used: open circuit potential, potentiodynamic polarization studies, and electrochemical impedance spectroscopy.

Findings

The study findings revealed the passivation tendency of the different specimens. Additionally, when the materials were compared, it was discovered that the decisive factor for high corrosion resistance was the chromium concentration. However, with similar chromium content, the stronger concentration in molybdenum increased the resistance. According to the results obtained in this investigation, the biological safety of the dental materials studied in Ringer solution was considered very high for specimens 1 and 2, and adequate for the other samples.

Originality/value

Metal alloys used as biomaterials in contact with the human body should be deeply investigated to make sure they are biocompatible and do not cause any harm. The corrosion resistance of an alloy is the most important characteristic for its biological safety, as all problems arise because of the corrosion process. There is scarce investigation in these Ni-based dental biomaterials, and none found in these commercially used dental materials in Ringer solution.

Keywords

Acknowledgements

Author contributions: conceptualization, C.M. Garcia-Falcon; writing – original draft, C.M. Garcia-Falcon; methodology, C.M. Garcia-Falcon and T. Gil-Lopez; investigation, C.M. Garcia-Falcon and T. Gil-Lopez; validation, T. Gil-Lopez; formal analysis, C.M. Garcia-Falcon and T. Gil-Lopez; data curation, T. Gil-Lopez and A. Verdu-Vazquez; writing – review and editing, A. Verdu-Vazquez; software, J.C. Mirza-Rosca; and supervision, J.C. Mirza-Rosca. All authors have read and agreed to the published version of the manuscript. Please turn to the CRediT taxonomy for the term explanation. Authorship must be limited to those who have contributed substantially to the work reported.

Funding: This research received no external funding.

Conflicts of interest: The authors declare no conflict of interest.

Citation

Garcia-Falcon, C.M., Gil-Lopez, T., Verdu-Vazquez, A. and Mirza-Rosca, J.C. (2021), "Corrosion behavior in Ringer solution of several commercially used metal alloys", Anti-Corrosion Methods and Materials, Vol. 68 No. 4, pp. 324-330. https://doi.org/10.1108/ACMM-05-2021-2486

Publisher

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Emerald Publishing Limited

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