305 / 2019-02-18 18:38:48

In-situ observation of microstructure deformation in shock compressed polycrystalline aluminum using synchrotron source based time-resolved X-ray diffraction

real-time detection,Deformation plasticity,X-ray Diffraction

全体主题 > High Pressure Physics and Materials Science

Shock-wave induced microstructural deformation, and grain refinement and rotation in polycrystalline materials are important characteristic, which determine material properties, such as strength and elastic-plastic deformation. Especially, plastic deformation and shock wave propagation in polycrystalline materials at the mesoscale grain are fundamentally different from those behaviors in single crystals. This talk will present the in-situ observation method of the shock-wave induced grain refinement using synchrotron-based time-resolved X-ray diffraction. The laser shock-compressed microstructure deformation of polycrystalline aluminum was quantitatively analyzed by the nanosecond time-resolved X-ray diffraction.