Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy
Abstract
Structural damage and chemical segregation in Al0.1CoCrFeNi high entropy alloy irradiated at elevated temperatures are studied using transmission electron microscopy (TEM) and atom probe tomography (APT). Irradiation-induced defects include dislocation loops, long dislocations and stacking-fault tetrahedra, but no voids can be observed. Furthermore, as irradiation temperature increases, defect density is decreased but defect size is increased, which is induced by increasing defect mobility. Finally, APT characterization reveals that ion irradiation at elevated temperatures can induce an enrichment of Ni and Co as well as a depletion of Fe and Cr at defect clusters, mainly including dislocation loops and long dislocations.
- Authors:
-
[4];
[2];
- Peking Univ., Beijing (China). Center for Applied Physics and Technology; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Nuclear Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences
- Nanjing Univ. (China). Herbert Gleiter Inst. of Nanoscience
- Peking Univ., Beijing (China). Center for Applied Physics and Technology
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Nuclear Engineering
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1399376
- Alternate Identifier(s):
- OSTI ID: 1549280
- Grant/Contract Number:
- AC05-00OR22725; SC0006661; 2015GB113000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scripta Materialia
- Additional Journal Information:
- Journal Volume: 144; Journal Issue: C; Journal ID: ISSN 1359-6462
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; irradiation effects; structural damage; chemical segregation; high entropy alloy
Citation Formats
Yang, Tengfei, Xia, Songqin, Guo, Wei, Hu, Rong, Poplawsky, Jonathan D., Sha, Gang, Fang, Yuan, Yan, Zhanfeng, Wang, Chenxu, Li, Congyi, Zhang, Yong, Zinkle, Steven J., and Wang, Yugang. Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy. United States: N. p., 2017.
Web. doi:10.1016/j.scriptamat.2017.09.025.
Yang, Tengfei, Xia, Songqin, Guo, Wei, Hu, Rong, Poplawsky, Jonathan D., Sha, Gang, Fang, Yuan, Yan, Zhanfeng, Wang, Chenxu, Li, Congyi, Zhang, Yong, Zinkle, Steven J., & Wang, Yugang. Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy. United States. https://doi.org/10.1016/j.scriptamat.2017.09.025
Yang, Tengfei, Xia, Songqin, Guo, Wei, Hu, Rong, Poplawsky, Jonathan D., Sha, Gang, Fang, Yuan, Yan, Zhanfeng, Wang, Chenxu, Li, Congyi, Zhang, Yong, Zinkle, Steven J., and Wang, Yugang. Fri .
"Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy". United States. https://doi.org/10.1016/j.scriptamat.2017.09.025. https://www.osti.gov/servlets/purl/1399376.
@article{osti_1399376,
title = {Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy},
author = {Yang, Tengfei and Xia, Songqin and Guo, Wei and Hu, Rong and Poplawsky, Jonathan D. and Sha, Gang and Fang, Yuan and Yan, Zhanfeng and Wang, Chenxu and Li, Congyi and Zhang, Yong and Zinkle, Steven J. and Wang, Yugang},
abstractNote = {Structural damage and chemical segregation in Al0.1CoCrFeNi high entropy alloy irradiated at elevated temperatures are studied using transmission electron microscopy (TEM) and atom probe tomography (APT). Irradiation-induced defects include dislocation loops, long dislocations and stacking-fault tetrahedra, but no voids can be observed. Furthermore, as irradiation temperature increases, defect density is decreased but defect size is increased, which is induced by increasing defect mobility. Finally, APT characterization reveals that ion irradiation at elevated temperatures can induce an enrichment of Ni and Co as well as a depletion of Fe and Cr at defect clusters, mainly including dislocation loops and long dislocations.},
doi = {10.1016/j.scriptamat.2017.09.025},
journal = {Scripta Materialia},
number = C,
volume = 144,
place = {United States},
year = {2017},
month = {9}
}
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