Corrosion Assessment of Nickel – Base – Dental Alloys in Ringer Biological Solution Studiedby Electrochemical Techniques

Archives of Metallurgy and Materials

article

L. Benea¹  L. Dragus¹  D. Mocanu¹ 

[1] Dunarea de Jos University of Galati, Competences Centre: Interfaces-Tribocorrosion and Electrochemical Systems;Dunarea de Jos University of Galati, Faculty of Medicine and Pharmacy

关键词: Corrosion;    Biocompatibility;    Dental alloys;    Ringer fluid;    Dental bridge;    Electrochemical methods;   

DOI  :  10.24425/amm.2022.137786

学科分类：物理（综合）

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The aim of this paper was to study the corrosion behavior of Nickel – Base – Dental Alloys in Ringer biological fluid. TheNickel base alloys are widely used for medical purposes, especially for prosthetic works in the field of dentistry. The appliedelectrochemical methods used for corrosion investigations are Open Circuit Potential, Linear Polarization during time of immersion in order to calculate the polarization resistance and corrosion rate. Potentiodynamic Polarization diagrams was performed toappreciate the passive domain. Ni-Cr Ugirex alloy show a better corrosion resistance in Ringer solution which will be reflectedin a longer life of the dental structures made with this alloy as compared to the Ni-Cr Ducinox alloy, which will result in dentalstructures with a shorter lifespan.The electrochemical studies has shown that the alloy have a corrosion behavior similar to a passivating alloy, displaying anextensive passivity area due to formation of an oxide film.

【 授权许可】

CC BY-NC