基于粗糙基底的W/316L不锈钢第一壁系统热应力的研究  

Thermal stress of W/316L stainless steel first wall system based on rough substrate

作　　者：刘泽 冷青松 唐琳[1] 王健 张亚飞 曹智 孙付春 LIU Ze;LENG Qingsong;TANG Lin;WANG Jian;ZHANG Yafei;CAO Zhi;SUN Fuchun(School of Electronic Information and Electrical Engineering,Chengdu University,Chengdu 610106,China;School of Mechanical Engineering,Chengdu University,Chengdu 610106,China;Cryogenic Department,Shanghai Marine Diesel Engine Research Institute,Shanghai 201203,China;The 404 Co.,Ltd.,CNNC,Jiayuguan 735100,China)

机构地区：[1]成都大学电子信息与电气工程学院,成都610106 [2]成都大学机械工程学院,成都610106 [3]上海船用柴油机研究所低温工程部,上海201203 [4]中核四〇四有限公司,嘉峪关735100

出　　处：《核技术》2023年第10期85-92,共8页Nuclear Techniques

基　　金：模式识别与智能信息处理重点实验室(No.MSSB-2023-07)资助。

摘　　要：第一壁系统中热应力的大小是决定聚变堆安全运行的关键因素之一。本文通过Ansys Workbench有限元软件,对具有粗糙基底的W/316L不锈钢系统中的热应力分布,以及影响热应力大小的诸如温度、涂层厚度、基底厚度等因素进行了深入分析。同时从系统中交界面剪切应力入手,研究了粗糙基底对涂层结合强度的影响。结果表明:粗糙基底系统中热应力随着温度、基底厚度的增加而增加,随着涂层厚度的增加而降低。除此之外,粗糙基底提升了系统中热应力的极值,在一定程度上提高了涂层与基底的结合强度。研究结果为后期高结合强度第一壁涂层系统的研发提供了一定的参考价值。[Background]The magnitude of the thermal stress in the first wall system is one of the key factors affecting the safe operation of the fusion reactor.[Purpose]This study aims to investigate the effect of a rough substrate on the thermal stress in the W/316L stainless steel first wall system.[Method]The finite-element analysis software Ansys Workbench was employ to analyze the distribution of thermal stree in a W/316L stainless steel first wall system with a rough substrate.Depth analysis was conducted on factors such as the temperature,coating thickness,and substrate thickness that affect the magnitude of thermal stress.Meanwhile,starting from the interface shear stress in the system,the influence of rough substrate on the bonding strength of coatings was simultaneously investigated.[Results]The simulation results indicate that the thermal stress in the rough substrate system increases with the the increase of temperature and substrate thickness,but decreases with the increase of coating thickness.The maximum thermal stress and the adhesive strength between the coating and the substrate are raised by the introduction of the rough substrate.[Conclusions]Results of this study can provide reference for the development of high-adhesive strength first wall coating systems.

关 键 词：W/316L不锈钢第一壁系统 粗糙基底 热应力 

分 类 号：TL99[核科学技术—核技术及应用]