Enhanced damage resistance and novel defect structure of CrFeCoNi under in situ electron irradiation
Abstract
Defect production and growth in CrFeCoNi, a single-phase concentrated solid solution alloy, is characterized using in situ electron irradiation inside a transmission electron microscope operated at 400–1250 kV and 400 °C. All observed defects are interstitial-type, either elliptical Frank loops or polygonal (mostly rhombus) perfect loops. Both forms of loops in CrFeCoNi exhibit a sublinear power law of growth that is > 40 times slower than the linear defect growth in pure Ni. Lastly, this result shows how compositional complexity impacts the production of Frenkel pairs and the agglomeration of interstitials into loops, and, thus, enhances the radiation tolerance.
- Authors:
-
- Univ. of Wisconsin, Madison, WI (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Kyushu Univ., Fukuoka (Japan)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1324177
- Alternate Identifier(s):
- OSTI ID: 1359857
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scripta Materialia
- Additional Journal Information:
- Journal Volume: 125; 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; radiation; defects; transmission electron microscopy
Citation Formats
He, Mo -Rigen, Wang, Shuai, Jin, Ke, Bei, Hongbin, Yasuda, Kazuhiro, Matsumura, Syo, Higashida, Kenji, and Robertson, Ian M. Enhanced damage resistance and novel defect structure of CrFeCoNi under in situ electron irradiation. United States: N. p., 2016.
Web. doi:10.1016/j.scriptamat.2016.07.023.
He, Mo -Rigen, Wang, Shuai, Jin, Ke, Bei, Hongbin, Yasuda, Kazuhiro, Matsumura, Syo, Higashida, Kenji, & Robertson, Ian M. Enhanced damage resistance and novel defect structure of CrFeCoNi under in situ electron irradiation. United States. https://doi.org/10.1016/j.scriptamat.2016.07.023
He, Mo -Rigen, Wang, Shuai, Jin, Ke, Bei, Hongbin, Yasuda, Kazuhiro, Matsumura, Syo, Higashida, Kenji, and Robertson, Ian M. Mon .
"Enhanced damage resistance and novel defect structure of CrFeCoNi under in situ electron irradiation". United States. https://doi.org/10.1016/j.scriptamat.2016.07.023. https://www.osti.gov/servlets/purl/1324177.
@article{osti_1324177,
title = {Enhanced damage resistance and novel defect structure of CrFeCoNi 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 = {Defect production and growth in CrFeCoNi, a single-phase concentrated solid solution alloy, is characterized using in situ electron irradiation inside a transmission electron microscope operated at 400–1250 kV and 400 °C. All observed defects are interstitial-type, either elliptical Frank loops or polygonal (mostly rhombus) perfect loops. Both forms of loops in CrFeCoNi exhibit a sublinear power law of growth that is > 40 times slower than the linear defect growth in pure Ni. Lastly, this result shows how compositional complexity impacts the production of Frenkel pairs and the agglomeration of interstitials into loops, and, thus, enhances the radiation tolerance.},
doi = {10.1016/j.scriptamat.2016.07.023},
journal = {Scripta Materialia},
number = C,
volume = 125,
place = {United States},
year = {Mon Jul 25 00:00:00 EDT 2016},
month = {Mon Jul 25 00:00:00 EDT 2016}
}
Web of Science
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