A comparative characterization of defect structure in NiCo and NiFe equimolar solid solution alloys under in situ electron irradiation
Abstract
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.
- Authors:
-
- 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
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1564114
- Alternate Identifier(s):
- OSTI ID: 1547623
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scripta Materialia
- Additional Journal Information:
- Journal Volume: 166; Journal Issue: C; Journal ID: ISSN 1359-6462
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; concentrated solid solution alloys; defects; radiation; segregation; transmission electron microscopy
Citation Formats
He, Mo-Rigen, Wang, Shuai, Jin, Ke, Bei, Hongbin, Yasuda, Kazuhiro, Matsumura, Syo, Higashida, Kenji, and Robertson, Ian M. A comparative characterization of defect structure in NiCo and NiFe equimolar solid solution alloys under in situ electron irradiation. United States: N. p., 2019.
Web. doi:10.1016/j.scriptamat.2019.03.008.
He, Mo-Rigen, Wang, Shuai, Jin, Ke, Bei, Hongbin, Yasuda, Kazuhiro, Matsumura, Syo, Higashida, Kenji, & Robertson, Ian M. A comparative characterization of defect structure in NiCo and NiFe equimolar solid solution alloys under in situ electron irradiation. United States. https://doi.org/10.1016/j.scriptamat.2019.03.008
He, Mo-Rigen, Wang, Shuai, Jin, Ke, Bei, Hongbin, Yasuda, Kazuhiro, Matsumura, Syo, Higashida, Kenji, and Robertson, Ian M. Sat .
"A comparative characterization of defect structure in NiCo and NiFe equimolar solid solution alloys under in situ electron irradiation". United States. https://doi.org/10.1016/j.scriptamat.2019.03.008. https://www.osti.gov/servlets/purl/1564114.
@article{osti_1564114,
title = {A comparative characterization of defect structure in NiCo and NiFe equimolar solid solution alloys under in situ electron irradiation},
author = {He, Mo-Rigen and Wang, Shuai and Jin, Ke and Bei, Hongbin and Yasuda, Kazuhiro and Matsumura, Syo and Higashida, Kenji and Robertson, Ian M.},
abstractNote = {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.},
doi = {10.1016/j.scriptamat.2019.03.008},
journal = {Scripta Materialia},
number = C,
volume = 166,
place = {United States},
year = {Sat Jun 01 00:00:00 EDT 2019},
month = {Sat Jun 01 00:00:00 EDT 2019}
}
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