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
- Patent Title: PROPERTY ENHANCEMENT OF SURFACES BY ELECTROLYTIC MICRO ARC OXIDATION
- Patent Title (中): 通过电解微弧氧化提高表面的性能
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Application No.: US14810155Application Date: 2015-07-27
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Publication No.: US20170029959A1Publication Date: 2017-02-02
- Inventor: You Lu , Manuel P. Marya , Virendra Singh , Tatiana Reyes Ayers
- Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
- Main IPC: C23F11/00
- IPC: C23F11/00 ; C23C2/12 ; C23C4/18 ; C23C16/56 ; C23C16/06 ; F16L58/08 ; C23C28/00 ; C25D5/48 ; C25D7/04 ; C23F17/00 ; E21B17/00 ; C23C2/26 ; C23C8/10

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.
Information query
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