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首页> 外文期刊>Inorganic materials: applied research >Effect of ion polishing on corrosion resistance of the cladding of fuel elements from E110 alloy in the steam water environment
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Effect of ion polishing on corrosion resistance of the cladding of fuel elements from E110 alloy in the steam water environment

机译：离子抛光对蒸汽环境中E110合金燃料元件包壳耐蚀性的影响

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摘要

The method of modification of the outer surface of the cladding of fuel elements from E110 Zr alloy by means of irradiation with a radial beam of Ar~+ ions with a broad energy spectrum is proposed. It is shown that the use of ion beam treatment at the final stage of the cladding production can improve the surface quality owing to removal of a large part of surface defects after mechanical polishing. The kinetics of the growth of oxide films on ion-beam-treated (cleaning or polishing by Ar~+ ions) tubular Zr alloy specimens in a steam environment (350, 375, and 400°C up to 3000 h) was investigated. Monoclinic zirconia layer formation is found to occur on the specimen surface oxidized at 350°C in water and steam environments. Oxidation of the fragments of the alloy fuel-element cladding in steam under pressure contributes to the formation of a thicker and more friable oxide film in comparison with the oxidation in water.
机译：提出了通过辐射能谱较宽的Ar〜+离子辐射束对E110 Zr合金燃料元件包壳外表面进行改性的方法。结果表明，由于在机械抛光后去除了大部分表面缺陷，因此在包层生产的最后阶段使用离子束处理可以改善表面质量。研究了在蒸汽环境（350、375和400°C至3000 h）下，离子束处理（用Ar〜+离子清洁或抛光）管状Zr合金样品上氧化膜生长的动力学。发现在水和蒸汽环境中，在350°C氧化的样品表面上会形成单斜氧化锆层。与在水中的氧化相比，在压力下蒸汽中的合金燃料元件覆层的碎片的氧化有助于形成更厚且更易碎的氧化膜。

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