Journal
JOURNAL OF MATERIALS RESEARCH
Volume 30, Issue 9, Pages 1275-1289Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1557/jmr.2015.32
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Funding
- U.S. DOE's Office of Nuclear Energy, Advanced Fuel Campaign of the Fuel Cycle RD program
- US DOE, Office of Nuclear Energy Nuclear Energy University Program (NEUP) [10-172, 10-678]
- US DOE, Nuclear Energy Research Initiative [08-055]
- US DOE, Office of Nuclear Energy under DOE Idaho Operations Office, ATR National Scientific User Facility experiment [DE-AC07-05ID1451, 13-419]
- ORNL's Center for Nanophase Materials Sciences (CNMS)
- Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory
- Department of Energy's Basic Energy Sciences
- State of North Carolina
- National Science Foundation (NCSU Titan G2 S/TEM)
- Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy
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This paper provides an overview of advanced scanning transmission electron microscopy (STEM) techniques used for characterization of irradiated BCC Fe-based alloys. Advanced STEM methods provide the high-resolution imaging and chemical analysis necessary to understand the irradiation response of BCC Fe-based alloys. The use of STEM with energy dispersive x-ray spectroscopy (EDX) for measurement of radiation-induced segregation (RIS) is described, with an illustrated example of RIS in proton- and self-ion irradiated T91. Aberration-corrected STEM-EDX for nanocluster/nanoparticle imaging and chemical analysis is also discussed, and examples are provided from ion-irradiated oxide dispersion strengthened (ODS) alloys. Finally, STEM techniques for void, cavity, and dislocation loop imaging are described, with examples from various BCC Fe-based alloys.
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