文章基本信息

标题：Study into formation of cobalt-containing peo-coatings on АК12М2МgN from a pyrophosphate electrolyte
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作者：Ann Karakurkchi ; Mykola Sakhnenko ; Maryna Ved 等
期刊名称：Eastern-European Journal of Enterprise Technologies
印刷版ISSN：1729-3774
电子版ISSN：1729-4061
出版年度：2017
卷号：6
期号：12
页码：19-27
DOI：10.15587/1729-4061.2017.118028
语种：English
出版社：PC Technology Center
摘要：We studied the process of formation of cobalt-containing oxide coatings using plasma-electrolytic oxidizing of the aluminum alloy AK12M2MgN in pyrophosphate electrolytes. It was established that the use of given type solutions contributes the homogenization of silumin surface and creates preconditions for the dopants incorporation to the growing oxide coating. It is shown that PEO parameters depend on the concentration ratio of cobalt sulfate and potassium pyrophosphate in a working solution. Based on the results of experimental study, we demonstrated the ways to control the structure and surface morphology of cobalt-containing PEO-coatings through the variation in the concentrations of electrolyte components.The composition of a pyrophosphate electrolyte for the formation of oxide PEO-coatings with a high cobalt content and developed surface morphology is substantiated. It is noted that the obtained oxide coatings could be used in catalytic reactions in order to decompose natural and technogenic toxicants.
关键词：oxide coating;silumin;plasma-electrolytic oxidizing;pyrophosphate electrolyte;surface morphology