Journal
INTERMETALLICS
Volume 26, Issue -, Pages 122-130Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2012.02.015
Keywords
Irradiation effects; Point defects; Microstructure; Transmission electron microscopy
Categories
Funding
- Priority Assistance for the Formation of Worldwide Renowned Centers of Research-Global COE Program (Project: Center of Excellence for Advanced Structural and Functional Materials Design)
- Joint Institute for Advanced Materials at University of Tennessee
- Oak Ridge National Laboratory
- Department of Energy, Office of Basic Sciences, through EPSCoR grant [DE-FG02-08ER46528]
- Grants-in-Aid for Scientific Research [23540459] Funding Source: KAKEN
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The structural change in the Zr-Hf-Nb alloy during MeV electron irradiation was investigated using high voltage electron microscopy (HVEM). The nano-crystalline structure, which had a diffraction pattern similar to that of an amorphous phase, could not be maintained under the irradiation. The irradiation-induced structural change was observed after high dpa irradiation (about 10 dpa). The irradiation-induced structural change was sensitive to the irradiation temperature. The difference in the irradiation damage evaluation process between conventional crystalline materials and multi-component alloys was discussed on the basis of the structures of the defects. (C) 2012 Elsevier Ltd. All rights reserved.
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