多场耦合原位拉伸中子衍射实验装置综述  

A review of multi-field coupled in-situ stretching neutrondiffraction experimental devices

作　　者：郑海彪 康乐[1,3] 陈洁 张雪凯[1,3] Zheng Haibiao;Kang Le;Chen Jie;Zhang Xuekai(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;University of Chinese Academy of Sciences,Beijing 100049,China;Spallation Neutron Source Science Center,Dongguan 523803,China)

机构地区：[1]中国科学院高能物理研究所,北京100049 [2]中国科学院大学,北京100049 [3]散裂中子源科学中心,广东东莞523803

出　　处：《强激光与粒子束》2024年第10期106-116,共11页High Power Laser and Particle Beams

基　　金：国家重点研发计划项目(2020YFA0406201)。

摘　　要：极端环境服役材料的研发一直是航空航天等国家战略发展的“瓶颈”,不同环境因素会影响材料的性能。中子由于其强穿透性、轻元素敏感等特点,可与同步辐射技术互为补充,运用原位装置还原材料在真实工况条件下的受力变形过程,并利用中子探针原位观察材料在服役条件下晶格应变、织构、相变和残余应力的演化。多个国家的中子谱仪均配备了不同的原位拉伸装置,实现在不同的加载环境下对样品进行原位应力加载,对样品材料的微观结构进行测试分析,能够解决材料工程领域的重要科学机理问题,进而推动材料的发展应用。介绍了国内外不同中子源谱仪原位拉伸装置的情况,重点阐述了应用于中子衍射技术的多场耦合原位拉伸装置的设计原理与结构特点,凸显了工程材料研究的发展方向。The research and development of materials for extreme environmental service has always been a bottleneck in development of national strategies such as aerospace,and different environmental factors can affect the performance of materials.Neutrons,due to their strong penetrability and sensitivity to light elements,can complement synchrotron radiation technology.In-situ devices are used to reduce the deformation process of materials under real working conditions,and neutron probes are used to observe the evolution of lattice strain,texture,phase transition,and residual stress of materials under service conditions.Neutron spectrometers from multiple countries are equipped with different in-situ tensile devices,which enable in-situ stress loading of samples in different loading environments,testing and analyzing the microstructure of sample materials.This can solve important scientific mechanism problems in the field of materials engineering and promote the development and application of materials.This article introduces the situation of in-situ stretching devices for different neutron source spectrometers at home and abroad,focusing on the design principles and structural characteristics of multi field coupling in-situ stretching devices used in neutron diffraction technology,and highlighting the development direction of engineering materials research.

关 键 词：中子衍射 中子源 多场耦合 原位拉伸 谱仪 

分 类 号：TL817.3[核科学技术—核技术及应用]