|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Accelerated Materials Evaluation for Nuclear Application Utilizing Test Reactors, Ion Beam Facilities and Integrated Modeling
||3D Study of Neutron-irradiated Fe-9Cr Alloy and 316 Stainless Steel Using Far-field and Near-field High-energy X-ray Diffraction Microscopy
||Xuan Zhang, Chi Xu, Yiren Chen, Meimei Li, Jun-Sang Park, Peter Kenesei, Hemant Sharma, Jonathan Almer
|On-Site Speaker (Planned)
Neutron irradiation effect on grain-level microstructures in two ferrous alloys has been investigated using a combination of far-field (FF-) and near-field (NF-) high-energy X-ray diffraction microscopy (HEDM) techniques. The samples are a 450oC/0.01dpa Fe-9Cr binary alloy, and a 300oC/10dpa 316 stainless steel. FF-HEDM gives higher strain resolution while NF-HEDM gives detailed orientation mapping. The combination of those two X-ray techniques on studying exactly the same materials volume in 3D provides comprehensive information at grain-scale, which forms a bridge between the nano scale features and the macroscopic scale properties. In addition, individual diffraction spots from single grains in a polycrystalline matrix can be extracted. The effect of neutron-irradiation on crystal lattices is observed and explained from diffraction point of view.
||Planned: Supplemental Proceedings volume