Experiment and simulation investigations on W/Cu components prepared by strong confinement thermal explosive welding

Nuclear Materials and Energy

Xiaojun Ni¹  Mingzhun Lei²  Honghao Ma²  Ming Yang³  Shuling Xu⁴ 

[1] Corresponding author.;Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, China;National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing, 210094, China;University of Science and Technology of China, Hefei, Anhui, China;

关键词: First wall;    Explosive welding;    SPH simulation;    Interface bonding performance;    Mechanical and thermodynamic study;   

DOI  :  

来源: DOAJ

【 摘 要 】

The first-wall materials and components are the most thermally loaded in-vessel components of a fusion machine, which are required to survive at high heat fluxes induced by the intense plasma bombardment. As a candidate material, the W/Cu composite was investigated from the aspects of choosing a feasible and preferable welding method for high performance and high strength. For this, a strong confinement thermal explosive welding technology was proposed to solve the key problems in producing high-quality W/Cu composite material without damage and shock-induced defects. The microstructural evolution of the welding interface was observed and analyzed in the paper. Combining with the numerical simulation, the evolution mechanism of the bonding interface and the changing rule of the grain structure of the material were studied. This comprehensive research allows to provide a new perspective for preparing high-quality W/Cu composite.

【 授权许可】

Unknown