Irradiation-enhanced α' precipitation in model FeCrAl alloys
Abstract
We have irradiated the model FeCrAl alloys with varying compositions (Fe(10–18)Cr(10–6)Al at.%) with a neutron at ~ 320 to damage levels of ~ 7 displacements per atom (dpa) to investigate the compositional influence on the formation of irradiation-induced Cr-rich α' precipitates using atom probe tomography. In all alloys, significant number densities of these precipitates were observed. Cluster compositions were investigated and it was found that the average cluster Cr content ranged between 51.1 and 62.5 at.% dependent on initial compositions. Furthermore, this is significantly lower than the Cr-content of α' in binary FeCr alloys. As a result, significant partitioning of the Al from the α' precipitates was also observed.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Wisconsin, Madison, WI (United States)
- Univ. of Wisconsin, Madison, WI (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1238750
- Alternate Identifier(s):
- OSTI ID: 1337414
- Grant/Contract Number:
- AC05-00OR22725; AC07-051D14517
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scripta Materialia
- Additional Journal Information:
- Journal Volume: 116; Journal Issue: C; Journal ID: ISSN 1359-6462
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; APT; FeCrAl; alpha prime; neutron irradiation
Citation Formats
Edmondson, Philip D., Briggs, Samuel A., Yamamoto, Yukinori, Howard, Richard H., Sridharan, Kumar, Terrani, Kurt A., and Field, Kevin G. Irradiation-enhanced α' precipitation in model FeCrAl alloys. United States: N. p., 2016.
Web. doi:10.1016/j.scriptamat.2016.02.002.
Edmondson, Philip D., Briggs, Samuel A., Yamamoto, Yukinori, Howard, Richard H., Sridharan, Kumar, Terrani, Kurt A., & Field, Kevin G. Irradiation-enhanced α' precipitation in model FeCrAl alloys. United States. https://doi.org/10.1016/j.scriptamat.2016.02.002
Edmondson, Philip D., Briggs, Samuel A., Yamamoto, Yukinori, Howard, Richard H., Sridharan, Kumar, Terrani, Kurt A., and Field, Kevin G. Wed .
"Irradiation-enhanced α' precipitation in model FeCrAl alloys". United States. https://doi.org/10.1016/j.scriptamat.2016.02.002. https://www.osti.gov/servlets/purl/1238750.
@article{osti_1238750,
title = {Irradiation-enhanced α' precipitation in model FeCrAl alloys},
author = {Edmondson, Philip D. and Briggs, Samuel A. and Yamamoto, Yukinori and Howard, Richard H. and Sridharan, Kumar and Terrani, Kurt A. and Field, Kevin G.},
abstractNote = {We have irradiated the model FeCrAl alloys with varying compositions (Fe(10–18)Cr(10–6)Al at.%) with a neutron at ~ 320 to damage levels of ~ 7 displacements per atom (dpa) to investigate the compositional influence on the formation of irradiation-induced Cr-rich α' precipitates using atom probe tomography. In all alloys, significant number densities of these precipitates were observed. Cluster compositions were investigated and it was found that the average cluster Cr content ranged between 51.1 and 62.5 at.% dependent on initial compositions. Furthermore, this is significantly lower than the Cr-content of α' in binary FeCr alloys. As a result, significant partitioning of the Al from the α' precipitates was also observed.},
doi = {10.1016/j.scriptamat.2016.02.002},
journal = {Scripta Materialia},
number = C,
volume = 116,
place = {United States},
year = {Wed Feb 17 00:00:00 EST 2016},
month = {Wed Feb 17 00:00:00 EST 2016}
}
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Works referencing / citing this record:
Vacancy and interstitial atom evolution with the separation of the nanoscale phase in Fe–Cr alloys: phase-field simulations
journal, January 2020
- Yan, Zhengwei; Shi, Shujing; Li, Yongsheng
- Physical Chemistry Chemical Physics, Vol. 22, Issue 6
α′ formation kinetics and radiation induced segregation in neutron irradiated 14YWT nanostructured ferritic alloys
journal, June 2019
- Aydogan, E.; Martinez, E.; March, K.
- Scientific Reports, Vol. 9, Issue 1
Influence of Al Addition Strategy on the Microstructure of a Low‐Cr Oxide Dispersion‐Strengthened Ferritic Steel
journal, December 2019
- Xu, Shuai; Zhou, Zhangjian; Long, Fei
- Advanced Engineering Materials, Vol. 22, Issue 4