U.S. Department of EnergyOffice of Scientific and Technical Information
Transmission electron microscopy of ion irradiated ODS MA956 samples
Abstract
Oxide dispersion strengthened (ODS) alloys are promising candidate materials for the next generation advanced nuclear reactors due to their superior irradiation resistance and mechanical properties. To better understand the effect of irradiation on MA956, it is essential to study higher dose (50-100 dpa) samples, so that the general trend of microstructural evolution and the resulting radiation-hardening can be deduced. Currently, ion irradiations are considered the only way to achieve doses beyond ~50 dpa in a practical time frame relevant to alloy and welding development programs. This dataset contains TEM characterization results of ODS MA956 samples that were ion irradiated under different conditions: Sample #5 (1.25 dpa at 190℃); Sample #9 (50 dpa at 190℃); Sample #15 (1.25dpa under 320℃); and Sample 17 (25 dpa at 320℃). TEM characterization focused on the irradiation induced defects (dislocation lines and loops) using the on-zone axis bright field STEM technique. These data were collected using a FEI Tecnai G2 F30 S/TEM at Microscopy and Characterization Suite (MaCS) at Center for Advanced Energy Studies (CAES), Idaho Falls, ID. This project (ion irradiation and TEM studies) was supported by the U.S. Department of Energy, Office of Nuclear Energy under DOE Idaho Operations Office Contract DE-AC07-05ID14517 asmore »
- Authors:
- Publication Date:
- DOE Contract Number:
- AC07-05ID14517;
- Research Org.:
- Nuclear Science User Facilities
- Sponsoring Org.:
- Nuclear Science User Facilities
- OSTI Identifier:
- 3021780
- DOI:
- https://doi.org/10.48806/3021780
Citation Formats
Prabhakaran, Ramprashad, Lu, Yu, Wu, Yaqiao, Shao, Lin, and Charit, Indrajit. Transmission electron microscopy of ion irradiated ODS MA956 samples. United States: N. p., 2024.
Web. doi:10.48806/3021780.
Prabhakaran, Ramprashad, Lu, Yu, Wu, Yaqiao, Shao, Lin, & Charit, Indrajit. Transmission electron microscopy of ion irradiated ODS MA956 samples. United States. doi:https://doi.org/10.48806/3021780
Prabhakaran, Ramprashad, Lu, Yu, Wu, Yaqiao, Shao, Lin, and Charit, Indrajit. 2024.
"Transmission electron microscopy of ion irradiated ODS MA956 samples". United States. doi:https://doi.org/10.48806/3021780. https://www.osti.gov/servlets/purl/3021780. Pub date:Tue Oct 15 20:00:00 EDT 2024
@article{osti_3021780,
title = {Transmission electron microscopy of ion irradiated ODS MA956 samples},
author = {Prabhakaran, Ramprashad and Lu, Yu and Wu, Yaqiao and Shao, Lin and Charit, Indrajit},
abstractNote = {Oxide dispersion strengthened (ODS) alloys are promising candidate materials for the next generation advanced nuclear reactors due to their superior irradiation resistance and mechanical properties. To better understand the effect of irradiation on MA956, it is essential to study higher dose (50-100 dpa) samples, so that the general trend of microstructural evolution and the resulting radiation-hardening can be deduced. Currently, ion irradiations are considered the only way to achieve doses beyond ~50 dpa in a practical time frame relevant to alloy and welding development programs. This dataset contains TEM characterization results of ODS MA956 samples that were ion irradiated under different conditions: Sample #5 (1.25 dpa at 190℃); Sample #9 (50 dpa at 190℃); Sample #15 (1.25dpa under 320℃); and Sample 17 (25 dpa at 320℃). TEM characterization focused on the irradiation induced defects (dislocation lines and loops) using the on-zone axis bright field STEM technique. These data were collected using a FEI Tecnai G2 F30 S/TEM at Microscopy and Characterization Suite (MaCS) at Center for Advanced Energy Studies (CAES), Idaho Falls, ID. This project (ion irradiation and TEM studies) was supported by the U.S. Department of Energy, Office of Nuclear Energy under DOE Idaho Operations Office Contract DE-AC07-05ID14517 as part of Nuclear Science User Facilities award #18-14784 (PI: Ramprashad Prabhakaran, PNNL).},
doi = {10.48806/3021780},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 15 20:00:00 EDT 2024},
month = {Tue Oct 15 20:00:00 EDT 2024}
}