Microstructure, mechanical and oxygen-deficient lead-bismuth eutectic corrosion properties of FeCrAlTiMo high-entropy alloy coatings for fuel claddings

IF 4.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Intermetallics Pub Date : 2024-10-17 DOI:10.1016/j.intermet.2024.108533

Jian Yang , Feifei Zhang , Lihong Zhai , Guofeng Qu , Jijun Yang

引用次数: 0

Abstract

The FeCrAlTiMo high-entropy alloy (HEA) coatings were deposited on the ferritic/martensitic (F/M) steel fuel cladding tubes by magnetron sputtering technology to improve their lead-bismuth eutectic (LBE) corrosion resistance. The effects of bias voltage on the microstructure, mechanical and LBE corrosion properties of the FeCrAlTiMo coatings were systematically investigated. The LBE corrosion test shows that the coatings with a bias voltage of −150 V exhibit the best oxidation resistance after exposed to the oxygen-deficient LBE at 600 °C for 500 h, and can be used as a protective candidate coating material for lead-cooled fast reactor (LFR) application. The high-temperature LBE corrosion mechanism of the FeCrAlTiMo coatings under deficient oxygen concentration was also discussed in detail.

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用于燃料包层的 FeCrAlTiMo 高熵合金涂层的显微结构、机械性能和缺氧铅铋共晶腐蚀性能

采用磁控溅射技术在铁素体/马氏体（F/M）钢燃料包壳管上沉积了铁铬铝钛钼高熵合金（HEA）涂层，以提高其铅铋共晶（LBE）耐腐蚀性。系统研究了偏压对 FeCrAlTiMo 涂层的微观结构、机械性能和 LBE 腐蚀性能的影响。LBE 腐蚀试验表明，偏置电压为 -150 V 的涂层在 600 °C 的缺氧 LBE 下暴露 500 小时后表现出最佳的抗氧化性，可用作铅冷快堆 (LFR) 应用的保护性候选涂层材料。此外，还详细讨论了缺氧条件下铁铬铝钛钼涂层的高温 LBE 腐蚀机理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Intermetallics 工程技术-材料科学：综合

CiteScore

7.80

自引率

9.10%

发文量

291

审稿时长

37 days

期刊介绍： This journal is a platform for publishing innovative research and overviews for advancing our understanding of the structure, property, and functionality of complex metallic alloys, including intermetallics, metallic glasses, and high entropy alloys. The journal reports the science and engineering of metallic materials in the following aspects: Theories and experiments which address the relationship between property and structure in all length scales. Physical modeling and numerical simulations which provide a comprehensive understanding of experimental observations. Stimulated methodologies to characterize the structure and chemistry of materials that correlate the properties. Technological applications resulting from the understanding of property-structure relationship in materials. Novel and cutting-edge results warranting rapid communication. The journal also publishes special issues on selected topics and overviews by invitation only.