反应堆压力容器表面超音速火焰喷涂铁基非晶合金试验研究  

Experimental Investigation of Supersonic Flame Spraying of Ironbased Amorphous Alloy on Reactor Pressure Vessel Surface

作　　者：张尚林 叶宗豪 赵磊[2] 邱天[1] 杨立才[1] 于天达[1] 杨敏[1] 钱锦远[2] ZHANG Shang-lin;YE Zong-hao;ZHAO Lei;QIU Tian;YANG Li-cai;YU Tian-da;YANG Min;QIAN Jin-yuan(State Key Laboratory of Reactor System Design Technology,Nuclear Power Institute of China;College of Energy Engineering,Zhejiang University)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室 [2]浙江大学能源工程学院

出　　处：《化工机械》2025年第1期24-35,共12页Chemical Engineering & Machinery

基　　金：国家自然科学基金(批准号:52205173)资助的课题;四川省自然科学基金(批准号:2023NSFSC0912)资助的课题。

摘　　要：为保证反应堆压力容器的传热性能,未对其进行任何表面处理,这导致安装及使用过程中反应堆压力容器表面出现了腐蚀问题。针对该问题,确定了所选用的表面处理技术为超音速火焰喷涂,所用材料为铁基非晶合金。针对所制备的铁基非晶合金涂层进行了孔隙率、厚度、涂层结合强度、热冲击、电化学腐蚀试验、盐雾试验、热导率及拉伸等测试。从表面结构、结合能力、耐蚀性能、对基材性能影响4个方面探究了涂层与表面处理技术在核电领域的适用性,结果表明,涂层与基材结合能力较好,且带涂层的封孔样可在不影响基材传热性能的情况下有效提升基材的耐蚀性能。The reactor pressure vessel without any surface treatment will encounter corrosion on its surface during the installation and application.For purpose of ensuring its heat transfer performance,the supersonic flame spraying was selected for the surface treatment,including adopting iron-based amorphous alloy.As for the test of porosity,thickness,coating bonding strength,thermal shock and the electrochemical corrosion,the applicability of coating and surface treatment technology in nuclear power was explored from the surface structure,binding ability,corrosion resistance and influence on the properties of substrate.The results show that,the coating has good bonding ability with the substrate,and the sealed samples with coating can effectively improve corrosion resistance of the substrate without influencing heat transfer performance of the substrate.

关 键 词：反应堆压力容器 铁基非晶合金涂层 传热性能 耐蚀性能 超音速火焰喷涂 

分 类 号：TL351.6[核科学技术—核技术及应用]