학술논문

Corrosion and wear behavior of alumina coatings obtained by various methods.
Document Type
Article
Source
Materials Science. May2011, Vol. 46 Issue 5, p591-598. 8p. 4 Black and White Photographs, 1 Diagram, 2 Charts, 5 Graphs.
Subject
*ALUMINUM oxide
*ALUMINUM
*CORROSION & anti-corrosives
*METAL coating
*ELECTROLYTIC oxidation
*THERMAL insulation
*METALLIC surfaces
*METAL hardness
Language
ISSN
1068-820X
Abstract
lumina coatings are widely used in a range of industrial applications to improve corrosion protection, wear and erosion resistances, and thermal insulation of metallic surfaces. Refined alumina surfaces with long-term use are obtained from various efficient and adjustable processes. It can be seen that costefficient arc-sprayed Al coatings post-treated by plasma-electrolytic oxidation (PEO) form AlO -layers with remarkable corrosion protection, hardness, bonding strength, and abrasion resistance, as well as with the extended service time. The properties of these coatings are compared with alumina coatings obtained by flame spraying and atmospheric plasma spraying. [ABSTRACT FROM AUTHOR]