Shiyong Wu, Yuliang Wang

(Hangzhou Normal University)

Abstract：

Neutron based detection technology, as an advanced non-destructive testing method, has shown great potential in the analysis of crystal structures of engineering materials. This technology can combine characterization under different in-situ environments to help researchers gain a deeper understanding and mastery of the performance of various engineering materials and components in close proximity to or even in real use, which is of great significance for the development, safe production, and use of materials. However, current neutron detection technology faces some challenges, including the relatively low flux of neutron sources and the limitations of processing methods on the position and time resolution of neutron detectors, resulting in some neutron based characterization techniques not yet achieving ideal application results. In terms of methodology, the three-dimensional information analysis of crystal structures of engineering materials and components based on neutron energy resolution imaging is still in its early stages of development, and neutron grating imaging lacks widely accepted single exposure algorithms. Various characterization techniques are still being continuously optimized. With the development and breakthroughs of hardware processing technology and neutron experimental methodology, neutron sources are expected to achieve higher resolution, faster and more accurate non-destructive testing and performance analysis, becoming an indispensable technical means and research platform in engineering materials and component research.

Key Words：

neutrons; engineering materials and components; application research