Irradiation-enhanced α' precipitation in model FeCrAl alloys

Edmondson, Philip D.; Briggs, Samuel A.; Yamamoto, Yukinori; Howard, Richard H.; Sridharan, Kumar; Terrani, Kurt A.; Field, Kevin G.

doi:10.1016/j.scriptamat.2016.02.002

Title: Irradiation-enhanced α' precipitation in model FeCrAl alloys

Journal Article · Wed Feb 17 00:00:00 EST 2016 · Scripta Materialia

DOI:https://doi.org/10.1016/j.scriptamat.2016.02.002· OSTI ID:1238750

Edmondson, Philip D. ^[1]; Briggs, Samuel A. ^[2]; Yamamoto, Yukinori ^[1]; Howard, Richard H. ^[1]; Sridharan, Kumar ^[3]; Terrani, Kurt A. ^[1]; Field, Kevin G. ^[1]

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)

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.

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Research Organization:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Nuclear Energy (NE); USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC05-00OR22725; AC07-051D14517

OSTI ID:: 1238750

Alternate ID(s):: OSTI ID: 1337414

Journal Information:: Scripta Materialia, Vol. 116, Issue C; ISSN 1359-6462

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 106 works

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Cited By (3)

Vacancy and interstitial atom evolution with the separation of the nanoscale phase in Fe–Cr alloys: phase-field simulations Yan, Zhengwei; Shi, Shujing; Li, Yongsheng Physical Chemistry Chemical Physics, Vol. 22, Issue 6 https://doi.org/10.1039/c9cp06247e	journal	January 2020
α′ formation kinetics and radiation induced segregation in neutron irradiated 14YWT nanostructured ferritic alloys Aydogan, E.; Martinez, E.; March, K. Scientific Reports, Vol. 9, Issue 1 https://doi.org/10.1038/s41598-019-44508-5	journal	June 2019
Influence of Al Addition Strategy on the Microstructure of a Low‐Cr Oxide Dispersion‐Strengthened Ferritic Steel Xu, Shuai; Zhou, Zhangjian; Long, Fei Advanced Engineering Materials, Vol. 22, Issue 4 https://doi.org/10.1002/adem.201900879	journal	December 2019

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