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Title: Development of ODS FeCrAl for compatibility in fusion and fission energy applications

Abstract

In this paper, oxide dispersion strengthened (ODS) FeCrAl alloys with 12–15% Cr are being evaluated for improved compatibility with Pb-Li for a fusion energy application and with high temperature steam for a more accident-tolerant light water reactor fuel cladding application. A 12% Cr content alloy showed low mass losses in static Pb-Li at 700°C, where a LiAlO2 surface oxide formed and inhibited dissolution into the liquid metal. All the evaluated compositions formed a protective scale in steam at 1200°C, which is not possible with ODS FeCr alloys. However, most of the compositions were not protective at 1400°C, which is a general and somewhat surprising problem with ODS FeCrAl alloys that is still being studied. More work is needed to optimize the alloy composition, microstructure and oxide dispersion, but initial promising tensile and creep results have been obtained with mixed oxide additions, i.e. Y2O3 with ZrO2, HfO2 or TiO2.

Authors:
 [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE); USDOE Office of Science (SC)
OSTI Identifier:
1185657
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
JOM. Journal of the Minerals, Metals & Materials Society
Additional Journal Information:
Journal Volume: 66; Journal Issue: 12; Journal ID: ISSN 1047-4838
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ODS; FeCrAl; Al2O3; liquid metal compatibility; steam oxidation; PbLi; creep; tensile; fuel cladding

Citation Formats

Pint, Bruce A., Dryepondt, Sebastien N., Unocic, Kinga A., and Hoelzer, David T. Development of ODS FeCrAl for compatibility in fusion and fission energy applications. United States: N. p., 2014. Web. doi:10.1007/s11837-014-1200-z.
Pint, Bruce A., Dryepondt, Sebastien N., Unocic, Kinga A., & Hoelzer, David T. Development of ODS FeCrAl for compatibility in fusion and fission energy applications. United States. https://doi.org/10.1007/s11837-014-1200-z
Pint, Bruce A., Dryepondt, Sebastien N., Unocic, Kinga A., and Hoelzer, David T. Sat . "Development of ODS FeCrAl for compatibility in fusion and fission energy applications". United States. https://doi.org/10.1007/s11837-014-1200-z. https://www.osti.gov/servlets/purl/1185657.
@article{osti_1185657,
title = {Development of ODS FeCrAl for compatibility in fusion and fission energy applications},
author = {Pint, Bruce A. and Dryepondt, Sebastien N. and Unocic, Kinga A. and Hoelzer, David T.},
abstractNote = {In this paper, oxide dispersion strengthened (ODS) FeCrAl alloys with 12–15% Cr are being evaluated for improved compatibility with Pb-Li for a fusion energy application and with high temperature steam for a more accident-tolerant light water reactor fuel cladding application. A 12% Cr content alloy showed low mass losses in static Pb-Li at 700°C, where a LiAlO2 surface oxide formed and inhibited dissolution into the liquid metal. All the evaluated compositions formed a protective scale in steam at 1200°C, which is not possible with ODS FeCr alloys. However, most of the compositions were not protective at 1400°C, which is a general and somewhat surprising problem with ODS FeCrAl alloys that is still being studied. More work is needed to optimize the alloy composition, microstructure and oxide dispersion, but initial promising tensile and creep results have been obtained with mixed oxide additions, i.e. Y2O3 with ZrO2, HfO2 or TiO2.},
doi = {10.1007/s11837-014-1200-z},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 12,
volume = 66,
place = {United States},
year = {Sat Nov 15 00:00:00 EST 2014},
month = {Sat Nov 15 00:00:00 EST 2014}
}

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Works referencing / citing this record:

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