期刊
ANTI-CORROSION METHODS AND MATERIALS
卷 68, 期 1, 页码 9-16出版社
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/ACMM-05-2020-2312
关键词
XPS; Passive film; AES; Cola; TA10
资金
- Shaanxi National Science Foundation [2019JQ-609]
- Fundamental Research Funds for the Central Universities [xjh012019048]
- Openning Project of Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research [2018LHM-KFKT001]
- Chinese International Postdoctoral Exchange Fellowship program [20190086]
The study aimed to analyze the corrosion resistance and composition of the passive film of TA10 alloy in different concentrations of cola, and found that with the increase of cola content, the self-corrosion current density of the alloy increases sharply. The findings have important guiding significance for the safe use of the alloy in complex oral environments.
Purpose At present, carbonated drinks such as cola are especially favored by the younger generation. But because of its acid, it often leads to tooth demineralization, resulting in cola tooth. However, the influence of cola on the corrosion resistance of passive film of TiA10 alloy restorative materials is rarely reported. The purpose of this study was to analysis the corrosion resistance, composition of the passive film of TA10 alloy in different concentrations of Cola. Design/methodology/approach The passive behavior of TA10 alloy in artificial saliva (AS) and Cola was studied by means of potentiodynamic polarization, electrochemical impedance spectroscopy, cyclic voltammetry, Mott-Schottky techniques and combined with X-ray photoelectron spectroscopy and Auger electron spectroscopy (AES) surface analysis. Findings With the increase of cola content, the self-corrosion current density of the alloy increases sharply, and the corrosion resistance of the passive film is the best in AS, while Rp in cola is reduced to half of that in AS. The thickness of the passive film in AS, AS +cola and cola is about 9.5 nm, 7.5 nm and 6 nm, respectively. The passive film in cola has more defects and the carrier density is 1.55 times as high as that in AS. Cola can weaken the formation process of the protected oxide, promote the formation of high valence Ti-oxides and increase the content of Mo-oxides in the passive film. Originality/value These results have important guiding significance for the safe use of the alloy in the complex oral environments.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据