摘要
中子检测技术具有深穿透性、同位素灵敏、无损及可开展原位实验等优势,在核工业材料研发领域具有重要支撑作用.中国原子能科学研究院依托中国先进研究堆中子科学平台,针对核燃料元件、压水堆包壳、压力容器钢、阀杆不锈钢和堆用多组元合金新材料等核工业关键部件和材料开展了中子无损检测研究,获得了燃料元件元素分布、锆合金包壳氢聚行为、压力容器钢焊接残余应力、阀杆老化纳米尺度演化、核级材料织构等关键信息,为核工业材料研发和关键部件性能评估提供了重要方法及关键数据.
Abstract
Neutron detection technology,with its advantages of deep penetration,isotope sensitivity,non-destructiveness,and the capability to conduct in-situ experiments,plays a crucial role in the research and development of nuclear industry materials.The China Institute of Atomic Energy,leveraging the China Advanced Research Reactor neutron science platform,has conducted neutron non-destructive testing research in key components of the nuclear industry.This includes nuclear fuel elements,pressurized water reactor cladding,pressure vessel steel,valve stem stainless steel,and new multi-component alloys for reactors.Through these efforts,they have obtained critical information such as the elemental distribution of fuel elements,hydrogen aggregation behavior in zirconium alloy cladding,welding residual stress in pressure vessel steel,nanoscale aging evolution of valve stems,and textures of nuclear-grade materials.These innovations provide essential methods and important data for the development of nuclear industry materials.
基金项目
中核集团基础研究项目(16FK010261123429)
中核集团研发平台稳定支持项目(16FW010251223349)
中国原子能科学研究院院长基金(YZ232505000901)
国家自然科学基金面上项目(12375305)
国家自然科学基金(12075321)
国家科技期刊平台
NSTL
万方数据