Effects of nano-SiO2 particle addition on the structure and properties of micro-arc oxidation ceramic coatings on 7075 aluminum alloy

IF 2.3 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING Anti-corrosion Methods and Materials Pub Date : 2024-05-02 DOI:10.1108/acmm-01-2024-2956

Song Tang, Xiaowen Chen, Defen Zhang, Wanlin Xie, Qingzheng Ran, Bin Luo, Han Luo, Junwei Yang

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Abstract

Purpose

The purpose of this study is to investigate the influence of varying concentrations of nano-SiO₂ particle doping on the structure and properties of the micro-arc oxidation (MAO) coating of 7075 aluminum alloy. This research aims to provide novel insights and methodologies for the surface treatment and protection of 7075 aluminum alloy.

Design/methodology/approach

The surface morphology of the MAO coating was characterized using scanning electron microscope. Energy spectrometer was used to characterize the elemental content and distribution on the surface and cross section of the MAO coating. The phase composition of the MAO coating was characterized using X-ray diffractometer. The corrosion resistance of the MAO coating was characterized using an electrochemical workstation.

Findings

The results showed that when the addition of nano-SiO₂ particles is 3 g/L, the corrosion resistance is optimal.

Originality/value

This study investigated the influence of different concentrations of nano-SiO₂ particles on the structure and properties of the MAO coating of 7075 aluminum alloy.

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添加纳米二氧化硅粒子对 7075 铝合金微弧氧化陶瓷涂层结构和性能的影响

目的本研究旨在探讨不同浓度的纳米二氧化硅粒子掺杂对 7075 铝合金微弧氧化（MAO）涂层的结构和性能的影响。该研究旨在为 7075 铝合金的表面处理和保护提供新的见解和方法。设计/方法/途径使用扫描电子显微镜对 MAO 涂层的表面形态进行表征。能谱仪用于表征 MAO 涂层表面和横截面上的元素含量和分布。使用 X 射线衍射仪对 MAO 涂层的相组成进行了表征。研究结果表明，当纳米二氧化硅颗粒的添加量为 3 g/L 时，耐腐蚀性能最佳。

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来源期刊

Anti-corrosion Methods and Materials 工程技术-冶金工程

CiteScore

2.80

自引率

16.70%

发文量

审稿时长

13.5 months

期刊介绍： Anti-Corrosion Methods and Materials publishes a broad coverage of the materials and techniques employed in corrosion prevention. Coverage is essentially of a practical nature and designed to be of material benefit to those working in the field. Proven applications are covered together with company news and new product information. Anti-Corrosion Methods and Materials now also includes research articles that reflect the most interesting and strategically important research and development activities from around the world. Every year, industry pays a massive and rising cost for its corrosion problems. Research and development into new materials, processes and initiatives to combat this loss is increasing, and new findings are constantly coming to light which can help to beat corrosion problems throughout industry. This journal uniquely focuses on these exciting developments to make essential reading for anyone aiming to regain profits lost through corrosion difficulties. • New methods, materials and software • New developments in research and industry • Stainless steels • Protection of structural steelwork • Industry update, conference news, dates and events • Environmental issues • Health & safety, including EC regulations • Corrosion monitoring and plant health assessment • The latest equipment and processes • Corrosion cost and corrosion risk management.