研究目的
To design and develop a laser-based facility for annealing tests at high temperatures, focusing on the recrystallization kinetics of tungsten for applications in nuclear fusion.
研究成果
The laser-based facility ChauCoLase effectively enables high-temperature annealing tests with precise control over heating rates and temperature gradients, demonstrating its utility in studying recrystallization kinetics of tungsten for nuclear fusion applications.
研究不足
The main limitations include the dependence of temperature measurement accuracy on sample emissivity determination and the presence of initial overshoots in temperature during the annealing sequence.
1:Experimental Design and Method Selection
The study employs a high-power ytterbium fiber laser for annealing tests, combining laser heating with non-contact diagnostics like infrared imaging for temperature control.
2:Sample Selection and Data Sources
Tungsten samples of 4 mm × 4 mm × 5 mm were used, selected for their relevance to nuclear fusion applications.
3:List of Experimental Equipment and Materials
High power CW ytterbium fiber laser (SPI laser Qube 1500), infrared camera (FLIR, model A655sc), monochromatic pyrometer (Sensortherm, model Metis M313), bichromatic pyrometer (Sensortherm, model Metis H322), type-C thermocouple.
4:Experimental Procedures and Operational Workflow
Samples were heated linearly with controlled heating rates, monitored by pyrometers and thermocouples, and analyzed post-annealing for recrystallization kinetics.
5:Data Analysis Methods
Recrystallization fraction was calculated from Vickers hardness tests and Electron Back Scatter Diffraction (EBSD) microscopy.
独家科研数据包,助您复现前沿成果,加速创新突破
获取完整内容