评估硫酸电解液两步阳极氧化工艺时间对耐久性的影响。

Evaluation of Durability Depending on Two Step Anodizing Process Time Using Sulfuric Acid Electrolyte.

机构信息

Department of Power System Engineering, Kunsan National University, Kunsan, Jeonbuk, 54150, Korea.

Division of Marine System Engineering, Mokpo Maritime University, Mokpo, Jeonnam, 58628, Korea.

出版信息

J Nanosci Nanotechnol. 2019 Apr 1;19(4):2291-2294. doi: 10.1166/jnn.2019.15981.

DOI:10.1166/jnn.2019.15981

PMID:30486984

Abstract

Naturally grown aluminum oxide film is about 10 nm in thickness, which is extremely thin with low commercial value, so that Al and its alloys are electrochemically treated to form a layer much thicker than the natural one. Such film received attention from academic and industrial for its high hardness and excellent corrosion resistance, which allows it to be colored in the desired shade. However, almost no investigations have been conducted to improve durability with anodizing process application on aluminum vessels so far. In this study, the optimum process time was established by applying anodizing technology to artificially form oxide film with excellent wear resistance on the material surface. The results of the experiments revealed that the quality of oxide film affected the cavitation resistance depending on the different anodizing process times. Consequently, 40 minutes of process time is determined to be the optimum, showing least amount of damage.

摘要

自然生长的氧化铝膜厚度约为 10nm，非常薄，商业价值低，因此对 Al 及其合金进行电化学处理，形成比自然生长的氧化铝膜厚得多的膜。这种膜因其高硬度和优异的耐腐蚀性而受到学术界和工业界的关注，使其可以被着色成所需的色调。然而，迄今为止，几乎没有研究通过在铝容器上应用阳极氧化工艺来提高其耐久性。在这项研究中，通过应用阳极氧化技术在材料表面形成具有优异耐磨性的氧化膜，确定了最佳的工艺时间。实验结果表明，氧化膜的质量会影响空蚀阻力，这取决于不同的阳极氧化工艺时间。因此，确定 40 分钟的工艺时间为最佳工艺时间，显示出最小的损伤。