A comparative characterization of defect structure in NiCo and NiFe equimolar solid solution alloys under in situ electron irradiation
Journal Article
·
· Scripta Materialia
- Univ. of Wisconsin, Madison, WI (United States). Dept. of Engineering Physics
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
- Kyushu Univ. (Japan). Ultramicroscopy Research Center and Dept. of Applied Quantum Physics and Nuclear Engineering
- Kyushu Univ. (Japan). Dept. of Materials Science and Engineering
Dislocation loops in NiCo and NiFe, both being single-phase, equimolar solid solution alloys, are generated by in situ high-voltage electron irradiation and characterized inside a transmission electron microscope. In addition to the different defect growth rates, the two alloys present dislocation loops with distinct shape evolution and element segregation, which reflect the element-sensitive, intrinsic properties (e.g., defect energetics, lattice distortion, and local ordering) of the alloys. These results provide evidence that the structure and dynamics of radiation-induced defects in concentrated alloys depend on not only the number but also the species of alloying elements.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1564114
- Alternate ID(s):
- OSTI ID: 1547623
- Journal Information:
- Scripta Materialia, Vol. 166, Issue C; ISSN 1359-6462
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 2 works
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