Effect of Micro-Arc Oxidation Voltage on the Surface Morphology and Properties of Ceramic Coatings on 7075 Aluminum Alloy

Effect of Micro-Arc Oxidation Voltage on the Surface Morphology and Properties of Ceramic Coatings on 7075 Aluminum Alloy

Ceramic oxide coatings were fabricated on 7075 aluminum alloy via micro-arc oxidation (MAO) in a silicate-phosphate electrolyte under voltages of 250 V, 300 V, and 350 V for 600 s. The effect of the applied voltage on the surface morphology, microstructure, phase composition, microhardness, roughnes...

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Bibliographic Details
Main Authors: Zarina Satbayeva, Ainur Zhassulan, Bauyrzhan Rakhadilov, Aibek Shynarbek, Kuanysh Ormanbekov, Aiym Leonidova
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Metals
Subjects:
7075 Al alloy
micro-arc oxidation
silicate-phosphate electrolyte
surface morphology
ceramic coating
corrosion resistance
Online Access:https://www.mdpi.com/2075-4701/15/7/746
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