用于船舶低碳钢管的等离子体电解氧化制备的防腐非晶涂层

Anticorrosive non-crystalline coating prepared by plasma electrolytic oxidation for ship low carbon steel pipes.

作者信息

Ma Chunsheng, Liu Jian, Zhu Xinhe, Xue Wenbin, Yan Zhijun, Cheng Dong, Fu Jingguo, Ma Shenglin

机构信息

College of Marine Engineering, Dalian Maritime University, Dalian, 116026, China.

College of Nuclear Science and Technology, Beijing Normal University, Beijing, 100875, China.

出版信息

Sci Rep. 2020 Sep 24;10(1):15675. doi: 10.1038/s41598-020-72787-w.

DOI:10.1038/s41598-020-72787-w

PMID:32973281

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7515860/

Abstract

A corrosion-resistant non-crystalline coating was fabricated by plasma electrolytic oxidation (PEO) on Q235 low carbon steel for ship pipes. The distribution and composition of chemical elements and phases of PEO coatings were analyzed by an orthogonal experiment, and the formation mechanism of PEO coatings was discussed. The corrosion current densities and corrosion potentials were measured. The results indicated that the formation of a transition layer mainly containing FeO was crucial for achieving an excellent coating quality. Furthermore, the corrosion current density of coated steel was reduced by 78% compared with the bare steel.

摘要

通过等离子体电解氧化（PEO）在用于船舶管道的Q235低碳钢上制备了一种耐腐蚀非晶涂层。通过正交试验分析了PEO涂层的化学元素和相的分布与组成，并探讨了PEO涂层的形成机理。测量了腐蚀电流密度和腐蚀电位。结果表明，形成主要包含FeO的过渡层对于获得优异的涂层质量至关重要。此外，与裸钢相比，涂层钢的腐蚀电流密度降低了78%。