|About this Abstract
||MS&T21: Materials Science & Technology
||Probing Defect Properties and Behavior under Mechanical Deformation and Extreme Conditions
||Synchrotron High-energy X-ray Studies of Nuclear Structural Materials: Deformation and Additive Manufacturing
||Xuan Zhang, Meimei Li, Jonathan Almer, Jun-Sang Park, Peter Kenesei, Andrew Chuang
|On-Site Speaker (Planned)
Recent advances of synchrotron X-ray diffraction- and imaging-based techniques have provided us unprecedented time and spatial resolution in the study of nuclear structural materials in-situ and/or in 3D. Synchrotron high-energy X-rays are ideal tools for probing the evolution of deformation microstructures and for revealing the underlying deformation mechanisms in bulk irradiated materials in real-time and in realistic conditions. Such tools are also advantageous in the study of the laser additive manufacturing process and the additively manufactured materials. Research conducted at the Advanced Photon Source will be highlighted, including in situ deformation studies of ferritic and austenitic steels with wide-angle X-ray scattering, small-angle X-ray scattering, and in situ 3D characterizations by high-energy X-ray diffraction microscopy. In situ metal additive manufacturing studies with high-speed X-ray diffraction and imaging, and X-ray tomography of porosity distribution in additively printed materials will also be presented.