金属材料的组织演化机理:基于同步辐射光源的原位研究进展

金属材料是一类最重要的承力结构材料,其通常在复杂的恶劣环境下服役.为获得优良的材料性能,金属材料的制造工艺和流程往往较为复杂,并且包含众多工序,深入研究并掌握制备过程中和复杂服役环境下的金属材料组织与缺陷的演化机理是提高材料性能和确保材料安全服役的重要基础.同步辐射光源具备的高时空分辨率为研究金属材料组织结构微观动力学...

Microstructure Evolution Mechanism of Metallic Materials:Progress on In Situ Studies Using Synchrotron Radiation Source

Metallic materials are one of the most important load-bearing structural materials,and are commonly used in complex and harsh environments.In order to obtain excellent material properties,the manufacturing process of metallic materials are often quite complex,and contain many processing steps.In-depth study and grasp of the evolution mechanism of microstructure and defects during manufacturing and under complex service environments is crucial to improving the material performance and ensure the safety of materials in service.The high spatial and temporal resolution of synchrotron radiation source provides an excellent research platform for studying the evolution mechanism of microstructure and defects for metallic materials.In this paper,the research progress of metallic materials using synchrotron radiation source is reviewed,including the construction of sample environment devices,the development and utilization of X-ray methodology,the researches on the preparation processing of metallic materials,and the evolution of microstructure and damage mechanism under complex external environment.Finally,the authors put forward the future development direction of this field.