Journal
APPLIED SURFACE SCIENCE
Volume 346, Issue -, Pages 534-542Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2015.04.040
Keywords
Zirconium; Anodization; Annealing; Corrosion resistance; Plasma electrolytic oxidation
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Funding
- Polish Ministry of Science and Education [IP 2011 0494 71]
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Herein, results of heat treatment of zirconium anodised under plasma electrolytic oxidation (PEO) conditions at 500-800 degrees C are presented. The obtained oxide films were investigated by means of SEM, XRD and Raman spectroscopy. The corrosion resistance of the zirconium specimens was evaluated in Ringer's solution. A bilayer oxide coatings generated in the course of PEO of zirconium were not observed after the heat treatment. The resulting oxide layers contained a new sublayer located at the metal/oxide interface is suggested to originate from the thermal oxidation of zirconium. The corrosion resistance of the anodised metal was improved after the heat treatment. (C) 2015 Elsevier B.V. All rights reserved.
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