About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
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Symposium
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Characterization of Nuclear Materials and Fuels with Advanced X-ray and Neutron Techniques
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Presentation Title |
In-situ Synchrotron X-ray Diffraction Study on Tensile Deformation of Neutron Irradiated Fe-Cr-C Alloys |
Author(s) |
Hoon Lee, Xiang Liu, Mark Warren , Dominic Piedmont , Xuan Zhang, Meimei Li, Jeff Terry , Jonathan Almer , James Stubbins |
On-Site Speaker (Planned) |
Hoon Lee |
Abstract Scope |
The investigation of mechanical deformations in Ferritic/Martensitic (F/M) steels is important for the development of fast fission and fusion reactor systems. In-situ XRD tensile experiments have provided valuable information on deformation behavior of these alloys with specific data as a function of crystal orientation of the Fe matrix and carbides. This includes microstructural information regarding dislocation density and type and precipitation resulting from neutron-induced atomic displacement damage. Irradiation hardening with lattice deformation of the matrix and carbide phases have been evaluated by analyzing wide angle X-ray scattering (WAXS). The evolution of edge and screw dislocations have been calculated by using the modified Williamson-Hall (MWH) method. The evolution of radiation induced precipitation and void growth have also been analyzed with small angle X-ray scattering (SAXS). The results of the study will provide theoretical and quantitative analysis of irradiation hardening behavior with microstructural information in Fe-Cr-C model alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Iron and Steel, |