Precipitation of α' in neutron irradiated commercial FeCrAl alloys

Field, Kevin G.; Littrell, Kenneth C.; Briggs, Samuel A.

doi:10.1016/j.scriptamat.2017.08.022

Precipitation of α' in neutron irradiated commercial FeCrAl alloys

Journal Article · Thu Aug 17 00:00:00 EDT 2017 · Scripta Materialia

DOI:https://doi.org/10.1016/j.scriptamat.2017.08.022· OSTI ID:1376421

^[1]; Littrell, Kenneth C. ^[1]; Briggs, Samuel A. ^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of Wisconsin, Madison, WI (United States)

In this paper, Alkrothal 720 and Kanthal APMT™, two commercial FeCrAl alloys, were neutron irradiated up to damage doses of 7.0 displacements per atom (dpa) in the temperature range of 320 to 382 °C to characterize the α' precipitation in these alloys using small-angle neutron scattering. Both alloys exhibited α' precipitation. Kanthal APMT™ exhibited higher number densities and volume fraction, a result attributed to its higher Cr content compared with Alkrothal 720. Finally, trends observed as a function of damage dose (dpa) are consistent with literature trends for both FeCr and FeCrAl alloys

View Accepted Manuscript (DOE)

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

Sponsoring Organization:: USDOE Office of Nuclear Energy (NE); USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Contributing Organization:: Univ. of Wisconsin, Madison, WI (United States)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1376421

Alternate ID(s):: OSTI ID: 1549805
OSTI ID: 22729500

Journal Information:: Scripta Materialia, Journal Name: Scripta Materialia Vol. 142; ISSN 1359-6462

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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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
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36 MATERIALS SCIENCE
FeCrAl
Ferritic steels
Neutron diffraction
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Precipitation of α' in neutron irradiated commercial FeCrAl alloys

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