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Corrosion Behavior of Titanium in Artificial Saliva by Lactic Acid

As one of the main products produced by oral microorganisms, the role of lactic acid in the corrosion of titanium is very important. In this study, the corrosion behavior of titanium in artificial saliva with and without lactic acid were investigated by open-circuit potentials (OCPs), polarization c...

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Detalles Bibliográficos
Autores principales: Qu, Qing, Wang, Lei, Chen, Yajun, Li, Lei, He, Yue, Ding, Zhongtao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456164/
https://www.ncbi.nlm.nih.gov/pubmed/28788143
http://dx.doi.org/10.3390/ma7085528
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author Qu, Qing
Wang, Lei
Chen, Yajun
Li, Lei
He, Yue
Ding, Zhongtao
author_facet Qu, Qing
Wang, Lei
Chen, Yajun
Li, Lei
He, Yue
Ding, Zhongtao
author_sort Qu, Qing
collection PubMed
description As one of the main products produced by oral microorganisms, the role of lactic acid in the corrosion of titanium is very important. In this study, the corrosion behavior of titanium in artificial saliva with and without lactic acid were investigated by open-circuit potentials (OCPs), polarization curves and electrochemical impedance spectroscopy (EIS). OCP firstly increased with the amount of lactic acid from 0 to 3.2 g/L and then tended to decrease from 3.2 to 5.0 g/L. The corrosion of titanium was distinctly affected by lactic acid, and the corrosion rate increased with increasing the amount of lactic acid. At each concentration of lactic acid, the corrosion rate clearly increased with increasing the immersing time. Results of scanning electron microscopy (SEM) also indicated that lactic acid accelerated the pitting corrosion in artificial saliva. A probable mechanism was also proposed to explain the experimental results.
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spelling pubmed-54561642017-07-28 Corrosion Behavior of Titanium in Artificial Saliva by Lactic Acid Qu, Qing Wang, Lei Chen, Yajun Li, Lei He, Yue Ding, Zhongtao Materials (Basel) Article As one of the main products produced by oral microorganisms, the role of lactic acid in the corrosion of titanium is very important. In this study, the corrosion behavior of titanium in artificial saliva with and without lactic acid were investigated by open-circuit potentials (OCPs), polarization curves and electrochemical impedance spectroscopy (EIS). OCP firstly increased with the amount of lactic acid from 0 to 3.2 g/L and then tended to decrease from 3.2 to 5.0 g/L. The corrosion of titanium was distinctly affected by lactic acid, and the corrosion rate increased with increasing the amount of lactic acid. At each concentration of lactic acid, the corrosion rate clearly increased with increasing the immersing time. Results of scanning electron microscopy (SEM) also indicated that lactic acid accelerated the pitting corrosion in artificial saliva. A probable mechanism was also proposed to explain the experimental results. MDPI 2014-07-28 /pmc/articles/PMC5456164/ /pubmed/28788143 http://dx.doi.org/10.3390/ma7085528 Text en © 2014 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Qu, Qing
Wang, Lei
Chen, Yajun
Li, Lei
He, Yue
Ding, Zhongtao
Corrosion Behavior of Titanium in Artificial Saliva by Lactic Acid
title Corrosion Behavior of Titanium in Artificial Saliva by Lactic Acid
title_full Corrosion Behavior of Titanium in Artificial Saliva by Lactic Acid
title_fullStr Corrosion Behavior of Titanium in Artificial Saliva by Lactic Acid
title_full_unstemmed Corrosion Behavior of Titanium in Artificial Saliva by Lactic Acid
title_short Corrosion Behavior of Titanium in Artificial Saliva by Lactic Acid
title_sort corrosion behavior of titanium in artificial saliva by lactic acid
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456164/
https://www.ncbi.nlm.nih.gov/pubmed/28788143
http://dx.doi.org/10.3390/ma7085528
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AT lilei corrosionbehavioroftitaniuminartificialsalivabylacticacid
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