Effect of Glucose Contents on Electrochemical Corrosion Behavior of Ti/ZrO2 Brazing Joint in SBF.
Effect of Glucose Contents on Electrochemical Corrosion Behavior of Ti/ZrO2 Brazing Joint in SBF.
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DOI：
10.1021/acsbiomaterials.2c00721
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发表时间：
2023-02
影响因子：
5.8
通讯作者：
Xiukai Chen;H. Bian;Xiaoguo Song;Xiao-Song Song-Xiao-Song-Song-2207853953;Yunfei Cao;Yue Chen
中科院分区：
文献类型：
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作者：
Xiukai Chen;H. Bian;Xiaoguo Song;Xiao-Song Song-Xiao-Song-Song-2207853953;Yunfei Cao;Yue Chen
采用SEM形貌观察、电化学和XPS分析等方法，研究了葡萄糖含量对Ti/ZrO 2钎焊接头在模拟体液（SBF）中电化学腐蚀行为的影响。在本文中，点蚀被观察到是一个主要的腐蚀模型下调查的葡萄糖含量。接头在200 mg/dL SBF中的点蚀最小。电化学分析表明，在200 mg/dL的模拟体液中，接头的耐蚀性最好，表明葡萄糖含量对Ti/ZrO 2钎焊接头的腐蚀有双向影响。此外，钛合金和钎焊接头的腐蚀电流值和阻抗值接近，表明它们的耐腐蚀性能相似。最后，通过XPS分析，发现接头表面存在OH-、Cl-、Sn 2 +/Sn 4+和-COOH等离子体，从而阐明了Ti/ZrO 2钎焊接头腐蚀的机理。该研究为Ti/ZrO 2钎焊接头在不同葡萄糖含量的体液中的腐蚀行为及机理提供了新的认识。
The effect of glucose content on the electrochemical corrosion behavior of the Ti/ZrO2 brazing joint in simulated body fluid (SBF) was researched by the means of SEM morphologies, electrochemical and XPS analyses. Herein, pitting is observed to be a dominating corrosion model under the investigated glucose content. The pitting corrosion of the joint in 200 mg/dL SBF is minimal. In addition, the joint in 200 mg/dL SBF manifests the best corrosion resistance by electrochemical analyses, which indicates that glucose content has a bidirectional effect on corrosion of the Ti/ZrO2 brazing joint. Additionally, the corrosion current value and impedance of titanium and brazing joint are close, which indicates that their corrosion resistance is similar. Finally, the OH-, Cl-, Sn2+/Sn4+ and -COOH on the joint surface are found by XPS analysis, and the mechanism of Ti/ZrO2 brazing joint corrosion is elucidated. The study provides a novel understanding of the corrosion behavior and relevant corrosion mechanism of the Ti/ZrO2 brazing joint in body fluids with different glucose content.