期刊
SURFACE & COATINGS TECHNOLOGY
卷 433, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2022.128134
关键词
High-temperature oxidation; Chromium coatings; Zirconium alloys; Magnetron sputtering; Electroplating
资金
- Russian Science Foundation [19-79-10116]
- Russian Science Foundation [19-79-10116] Funding Source: Russian Science Foundation
Chromium coatings were deposited on E110 zirconium alloy by magnetron sputtering and electroplating. The magnetron-deposited coatings showed stable oxidation behavior and better adhesion compared to the electroplated coatings, which had cracks and defects in the interlayer.
Chromium coatings were deposited either by magnetron sputtering and electroplating on E110 zirconium alloy. The as-deposited Cr coatings showed dense microstructure, but different mechanical properties and adhesion behavior depending on the deposition technology. High-temperature oxidation was performed in air at 1100 C for 40 min. The magnetron-deposited coatings had a stable oxidation behavior which was improved by increasing coating thickness. Surface activation of E110 alloy prior to Cr electroplating resulted in formation of the interlayer with a thickness of 7-12 mu m between the coating and the alloy containing hydride and fluoride phases. It was shown that cracks and defects in this interlayer of the electroplated Cr coatings affected the coating adhesion and resulted in lower oxidation resistance compared to the magnetron-deposited coatings.
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