摘要
事故容错燃料(accident tolerant fuel,ATF)作为新一代核燃料,其包壳是关键组件。当前,在现有锆合金包壳表面制备高性能防护涂层,是ATF研发的主流技术路径之一。为此,从涂层制备技术、涂层材料体系两方面对锆合金包壳涂层的研究进展进行了综述。首先介绍了物理气相沉积、冷喷涂、激光熔覆和新兴复合涂层制备技术的研究进展,指出新兴复合涂层制备技术能够综合多种技术优势,具有广阔的应用前景;其次总结了MAX相、Cr系和FeCrAl合金三类涂层材料的研究现状,提出了涂层-界面-基体的扩散与氧化行为、涂层的阻氢行为与性能以及建立氧化动力学预测模型将是锆合金包壳涂层领域亟待解决的重要问题。
As a new generation of nuclear fuel,accident tolerant fuel(ATF)relies heavily on its cladding as a key component.Currently,depositing high-performance protective coatings on the surface of existing zirconium alloy cladding represents one of the primary technical approaches in ATF research and development.This article systematically reviews the research progress of zirconium alloy cladding coatings through two aspects:coating preparation technologies and coating material systems.Firstly,the research progress of physical vapor deposition,cold spraying,laser cladding and emerging composite coating preparation technology is introduced,and it is pointed out that the emerging composite coating preparation technology can integrate the advantages of multiple techniques and has broad application prospects.Secondly,the research status of three coating materials,MAX phase,Cr-based systems and FeCrAl alloys are summarized,and it is proposed that the diffusion and oxidation behavior of coating-interface-matrix,the hydrogen blocking behavior and performance of coating,and the establishment of oxidation kinetics prediction models will be important issues to be solved in the field of zirconium alloy cladding coatings.
作者
孙涛涛
张伟
丁郁航
刘琼
周宣
李宇力
Sun Taotao;Zhang Wei;Ding Yuhang;Liu Qiong;Zhou Xuan;Li Yuli(Xian Western Energy Material Technologies Co.,Ltd.,Xian 710299,China)
出处
《钛工业进展》
2025年第6期43-49,共7页
Titanium Industry Progress
基金
秦创原产业创新聚集区“四链”融合项目(2024CY-JJQ-71)。
关键词
事故容错燃料
锆合金
涂层材料
制备技术
accident tolerant fuel
zirconium alloy
coating material
preparation technology
