Comparison of thermal shock resistance capabilities of the rotary swaged pure tungsten,potassium-doped tungsten,and W-La_(2)O_(3)alloys  

作　　者：Tao Yang Hao Wang Fan Feng Xiang Liu Xue-Yu Gong You-Yun Lian Jian-Bao Wang 

机构地区：[1]School of Nuclear Science and Technology,University of South China,Hengyang,421001,China [2]Southwestern Institute of Physics,Chengdu,610041,China

出　　处：《Tungsten》2024年第4期759-766,共8页钨科技（英文）

基　　金：supported by the Natural Science Foundation of Sichuan Province(2022NSFSC0329);the National Natural Science Foundation of China(Grant Nos.11975092,12205086,12192283,and 12075114)。

摘　　要：Tungsten-based materials are one of the most important candidates for the plasma facing materials(PFMs)of future fusion reactors,and it is necessary to study the properties of tungsten-based materials under the service conditions of fusion devices to ensure the long-term steady-state operation of future fusion reactors.In this paper,different tungsten-based materials made by the same rotary swaging process are selected to simulate the transient thermal loads on the PFMs of a fusion reactor using an electron beam,and thermal load experiments are carried out by changing the power density of a loading pulse and the pulse number.It is found that different tungsten-based materials made by the same process have large differences in thermal shock resistance,and the doped tungsten materials(W-K and W-La_(2)O_(3))are significantly better than the pure tungsten materials with the increase in thermal shock power density and the number of cycles,especially the W-K materials,which have excellent performance.

关 键 词：Rotary swaging Tungsten materials Electron beam Thermal shock 

分 类 号：TG146.411[一般工业技术—材料科学与工程]