基于同步辐射的强冲击荷载下原位诊断技术及其应用研究进展

Progress on Synchrotron Based in-Situ Dynamic X-Ray Diagnostics and Its Applications

强冲击荷载下材料的微介观动态行为是动态压缩科学中的重要研究内容,但长期以来由于缺乏原位动态跨尺度表征技术而进展缓慢。以同步辐射为典型代表的先进X射线光源的出现为该问题的解决提供了革命性的机遇与挑战。依托同步辐射光源,近年来对强冲击荷载下材料的动态变形、损伤失效、固-固相变、熔化等问题研究取得了重要突破。聚焦基于同步辐射的强冲击荷载下原位诊断技术及其应用研究进展,简要介绍了同步辐射光源的特性、同步辐射光源与动态加载装置的结合、相关仿真计算方法的发展以及典型科学问题的应用。

The dynamic behavior of materials at mesoscales under intense dynamic shock loading has always been the research focus of dynamic compression science.Unfortunately,for a long time,due to the lack of in-situ dynamic multi-scale diagnostics,the progress has been slow.The emergence of advanced X-ray light sources typified by synchrotron radiation provides revolutionary opportunities and challenges for this problem.Significant breakthroughs have been made recently in terms of dynamic plastic deformation,damage failure,solid-solid and solid-liquid phase transitions of materials under shock loading.This paper focuses on the research progress of in-situ dynamic diagnostics based on synchrotrons and its applications,and briefly introduces the characteristics of synchrotron radiation light source,the combination with dynamic loading device,the development of related simulation calculation methods and the application of typical scientific problems from the perspective of physical requirements.