Abstract
This paper presents the results of the study of resistance to corrosion of zirconium fuel element cladding fragments protected with nichrome and chrome coatings. Experiments were conducted on coatings deposition on fuel element claddings by cathodic arc deposition and electrochemical deposition methods. Argon ion beam pretreatment of the cladding surface is shown to have a beneficial effect on coating adhesion. Studies of resilience of the coatings were conducted in the atmosphere of super-heated steam at 900 °C and with an exposure of up to 10000 seconds. It has been shown that the coatings deposited impede formation of ZrO2 oxide layer at the outer surface and reduce the depth of oxygen penetration into the metallic sublayer as compared with the samples in their original condition.
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