摘要
核聚变堆中的面向等离子体材料钨需要和结构材料低活化钢形成高质量连接,以制造出可满足极端苛刻工作条件的钨/钢复合结构件。介绍了钨/钢复合结构连接的难点,详细阐述了钨/钢复合结构的连接技术、连接接头的热应力与降应力方法以及力学性能等方面的国内外研究现状。指出对钨/钢复合结构导热性、抗热疲劳性及高温与强辐射环境下工作的可靠性要进行系统测试与分析,并以此为基础不断改进连接技术与工艺,标准化测试方法,确定钨/钢复合结构关键性能的优先顺序及指标等是今后核聚变堆钨/钢复合结构连接研究的发展方向。
In nuclear fusion reactors, joining the plasma material tungsten and structural material low activation steel is a key issue to manufacture tungsten/steel composite structures that can meet extremely harsh working requirements. The difficulties of joining tungsten and steel are introduced, and the research status of bonding technologies of tungsten/steel composite structure, thermal stress and stress reduction method of the joint, and mechanical properties of the joint are described in detail. It is pointed out that improving bonding technology and processes on the basis of systematic test and analysis of thermal conductivity, thermal fatigue resistance and working reliability in high temperature and strong radiation environment, standardizing test methods, and determining the priority and requirements of the key performance of tungsten/steel composite structures are the development direction of the research on tungsten/steel composite structure bonding technologies for nuclear fusion reactors.
作者
杨宗辉
沈以赴
张旭
李晓泉
YANG Zonghui;SHEN Yifu;ZHANG Xu;LI Xiaoquan(School of Materials Science and Engineering,Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology,Nanjing Institute of Technology,Nanjing 211167,China;College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 211067,China)
出处
《机械工程材料》
CAS
CSCD
北大核心
2022年第12期9-17,共9页
Materials For Mechanical Engineering
基金
江苏省自然科学基金资助项目(BK20201036)
南京工程学院创新基金面上资助项目(CKJB201902)。
关键词
钨/钢复合结构
核聚变
连接技术
热应力
力学性能
tungsten/steel composite structure
nuclear fusion
bonding technology
thermal stress
mechanical property
