Invention Application
US20170029959A1 PROPERTY ENHANCEMENT OF SURFACES BY ELECTROLYTIC MICRO ARC OXIDATION 审中-公开
通过电解微弧氧化提高表面的性能

PROPERTY ENHANCEMENT OF SURFACES BY ELECTROLYTIC MICRO ARC OXIDATION
Abstract:
Embodiments of the present technology may include a method of improving tribological and corrosion properties of an oilfield tubular for conveying hydrocarbons. The method may include depositing a first layer comprising aluminum over a substrate. The substrate may include a ferrous alloy. The method may also include immersing the substrate and the first layer in an alkaline electrolytic liquid bath. The method may further include oxidizing a first portion of the first layer by micro arc oxidation to form a second layer over a second portion of the first layer. The second layer may include aluminum oxide. The oilfield tubular may include the substrate, the first layer, and the second layer.
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