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

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...

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Detalles Bibliográficos
Autores principales: Ma, Chunsheng, Liu, Jian, Zhu, Xinhe, Xue, Wenbin, Yan, Zhijun, Cheng, Dong, Fu, Jingguo, Ma, Shenglin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7515860/
https://www.ncbi.nlm.nih.gov/pubmed/32973281
http://dx.doi.org/10.1038/s41598-020-72787-w
Descripción
Sumario: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 Fe(3)O(4) 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.

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