Abstract
Plasma electrolytic oxidation (PEO) is a process for obtaining oxide
coatings on valve metals. Mostly PEO is done in an aqueous solution electrolyte
which limits the size of treated parts due to the system heating up. In presented
work an alternative method of PEO processing applied in aluminum 1050 alloy
in nitrate molten salt was investigated. The morphology, phase and chemical
compositions, micro-hardness, and corrosion resistance were examined using.
The obtained results showed that formed coating contains from two sub-layers,
outer soft layer with the thickness of 4 µm and inner, denser layer with the
thickness of 5µm. The formed coating consists of corundum, γ-Al2O3, θAl2O3and is free of any contaminants originated from the electrolyte.
coatings on valve metals. Mostly PEO is done in an aqueous solution electrolyte
which limits the size of treated parts due to the system heating up. In presented
work an alternative method of PEO processing applied in aluminum 1050 alloy
in nitrate molten salt was investigated. The morphology, phase and chemical
compositions, micro-hardness, and corrosion resistance were examined using.
The obtained results showed that formed coating contains from two sub-layers,
outer soft layer with the thickness of 4 µm and inner, denser layer with the
thickness of 5µm. The formed coating consists of corundum, γ-Al2O3, θAl2O3and is free of any contaminants originated from the electrolyte.
| Original language | English |
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| Title of host publication | 17th ISRAELI-RUSSIAN BI-NATIONAL WORKSHOP 2018 “The optimization of the composition, structure and properties of metals, oxides, composites, nano and amorphous materials” |
| Pages | 190-198 |
| ISBN (Electronic) | 978-5-907080-11-9 |
| State | Published - 2018 |
Publication series
| Name | 17th ISRAELI-RUSSIAN BI-NATIONAL WORKSHOP 2018 “The optimization of the composition, structure and properties of metals, oxides, composites, nano and amorphous materials” |
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