AMg3 合金的等离子电解氧化与氟聚合物喷涂复合涂层的形成。

Composite Coatings of AMg3 Alloy Formed by a Combination of Plasma Electrolytic Oxidation and Fluoropolymer Spraying.

机构信息

Department of Electrochemical Systems and Processes of Surface Modification, Institute of Chemistry FEB RAS, 159 pr. 100-Letiya Vladivostoka, 690022 Vladivostok, Russia.

Institute of High Technologies and Advanced Materials, Far Eastern Federal University, 10 Ajax Bay, Russky Island, 690922 Vladivostok, Russia.

出版信息

Molecules. 2023 Jan 4;28(2):465. doi: 10.3390/molecules28020465.

DOI:10.3390/molecules28020465

PMID:36677526

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9861268/

Abstract

This paper presents the results of an investigation of the changes in the corrosion, wear resistance, and wettability of composite coatings formed on the AMg3 alloy through plasma electrolytic oxidation (PEO) and subsequent spraying with an organofluorine polymer. The evaluation of the electrochemical properties of the composite layers revealed a decrease in the corrosion current density compared with the PEO coating (from 3.8 × 10 to 3.1 × 10 A/cm). The analysis of the wear resistance of composite coatings established that the application of this type of coating reduced the wear of the samples by two orders of magnitude when compared with the PEO layer. Using the contact-angle measurement, it was found that with an increase in the number of polymer spray applications, the wettability of coatings decreased, so the contact angle for the composite coating with triple fluoropolymer application increased by 134.3° compared to the base PEO coating.

摘要

本文介绍了通过等离子体电解氧化（PEO）和随后喷涂有机氟聚合物对 AMg3 合金形成的复合涂层的腐蚀、耐磨性和润湿性变化的研究结果。对复合层电化学性能的评估表明，与 PEO 涂层相比，腐蚀电流密度降低（从 3.8×10 降至 3.1×10 A/cm）。对复合涂层耐磨性的分析表明，与 PEO 层相比，这种类型的涂层的应用将样品的磨损降低了两个数量级。通过接触角测量发现，随着聚合物喷涂次数的增加，涂层的润湿性降低，因此，与基础 PEO 涂层相比，三次喷涂氟聚合物的复合涂层的接触角增加了 134.3°。