使用含纳米氧化锌的微弧氧化涂层增强 ZK60 镁合金的耐腐蚀性和抗菌性能

IF 2.9 2区 材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING Acta Metallurgica Sinica-English Letters Pub Date : 2024-09-15 DOI:10.1007/s40195-024-01770-5
Jin-Xiu Li, Jun-Xiu Chen, M. A. Siddiqui, S. K. Kolawole, Yang Yang, Ying Shen, Jian-Ping Yang, Jian-Hua Wang, Xu-Ping Su
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引用次数: 0

摘要

纳米氧化锌(ZnO)具有显著的抗菌性能。为了进一步提高镁合金微弧氧化(MAO)涂层的耐腐蚀性和抗菌效率,本研究通过在 MAO 电解液中加入纳米氧化锌来制备具有双重功能的含氧化锌微弧氧化涂层。通过微观结构分析、浸泡试验、电化学实验和抗菌试验,研究了不同浓度的氧化锌对涂层的微观结构、耐腐蚀性和抗菌性能的影响。研究结果表明,纳米氧化锌的加入显著增强了 MAO 涂层合金的耐腐蚀性。具体来说,当电解液中的 ZnO 浓度为 5 g/L 时,腐蚀速率比不添加 ZnO 的 MAO 涂层低十倍以上。此外,ZnO 浓度为 5 g/L 的 ZnO + MAO 涂层在与金黄色葡萄球菌(S. aureus)共培养 24 小时后,抗菌效果超过 95%。纳米氧化锌 + MAO 涂层合金具有优异的耐降解性、耐腐蚀性和抗菌效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Enhancing Corrosion Resistance and Antibacterial Properties of ZK60 Magnesium Alloy Using Micro-Arc Oxidation Coating Containing Nano-Zinc Oxide

Nano-zinc oxides (ZnO) demonstrate remarkable antibacterial properties. To further enhance the corrosion resistance and antibacterial efficiency of magnesium alloy micro-arc oxidation (MAO) coatings, this study investigates the preparation of ZnO-containing micro-arc oxidation coatings with dual functionality by incorporating nano-ZnO into MAO electrolyte. The influence of varying ZnO concentrations on the microstructure, corrosion resistance, and antibacterial properties of the coating was examined through microstructure analysis, immersion tests, electrochemical experiments, and antibacterial assays. The findings revealed that the addition of nano-ZnO significantly enhanced the corrosion resistance of the MAO-coated alloy. Specifically, when the ZnO concentration in the electrolyte was 5 g/L, the corrosion rate was more than ten times lower compared to the MAO coatings without ZnO. Moreover, the antibacterial efficacy of ZnO + MAO coating, prepared with a ZnO concentration of 5 g/L, surpassed 95% after 24 h of co-culturing with Staphylococcus aureus (S. aureus). The nano-ZnO + MAO-coated alloy exhibited exceptional degradation resistance, corrosion resistance, and antibacterial effectiveness.

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来源期刊
Acta Metallurgica Sinica-English Letters
Acta Metallurgica Sinica-English Letters METALLURGY & METALLURGICAL ENGINEERING-
CiteScore
6.60
自引率
14.30%
发文量
122
审稿时长
2 months
期刊介绍: This international journal presents compact reports of significant, original and timely research reflecting progress in metallurgy, materials science and engineering, including materials physics, physical metallurgy, and process metallurgy.
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