Recently, the National Natural Science Foundation of China held a kick-off meeting for the development of a major national scientific research instrument and equipment special project-"Development of Neutron Spectrometers for Deep Stress Fields and Defect Non-destructive Detection of Materials and Components" at Central South University.
The "Development of Neutron Spectrometer for Deep Stress Field and Defect Non-destructive Detection of Materials and Components" project is based on Central South University and China Academy of Atomic Energy participated in the project, with a funding of 76 million yuan and a project period of 5 years. The project will develop a neutron spectrometer for deep stress field and defect nondestructive detection of materials and components in five years. It is used to detect the deep residual stress field and macroscopic stress field of materials / components, component damage defects and surrounding stress fields, and the corresponding forces of material composition. ， Serve in material design, component and material integration design and manufacturing and scientific evaluation of service performance, conditions guarantee for safe operation of major equipment, etc .; explore the internal stress state and its interaction and change, cyclic stress between the phases of multi-phase materials The scientific law of the damage formation mechanism and evolution of materials / components under the action.
The Central South University team has long-term research on the manufacture of high-performance materials and components and equipment, combined with aviation components to explore and study the generation, development and evolution of internal stress in the process of manufacturing and service. 3. Rich experience in research on mechanism motion modeling and precise positioning control; China Academy of Atomic Energy has a high-throughput research reactor device, which provides a prerequisite for the construction of the project ’s instruments. In the neutron optical theory, neutron transmission and detection element He has profound research and development in the development of devices and the design and construction of radiation shielding systems, and has extensive experience in international cooperation in the construction of neutron spectrometers. The cooperation between Central South University and China Academy of Atomic Energy Research to develop neutron spectrometers can be described as complementary advantages and strong alliances, which fully integrates the existing relevant resources and research teams and provides guarantee for the project development.
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