Compatibility of FeCrAlMo in Flowing Pb-Li at 600°C to 700°C

B. A. Pint; J. Jun; E. Cakmak; D. J. Sprouster; N. Olynik; L. L. Snead

doi:10.1080/15361055.2021.1898305

Compatibility of FeCrAlMo in Flowing Pb-Li at 600°C to 700°C

B. A. Pint, J. Jun, E. Cakmak, D. J. Sprouster, N. Olynik, L. L. Snead

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A series of monometallic thermal convection loops (TCLs) has been conducted to determine the maximum temperature where FeCrAl alloys have compatibility with eutectic lead lithium (Pb-Li) for a dual-coolant fusion blanket. Pre-oxidizing commercial alloy APMT (Fe-21Cr-5Al-3Mo) for 2 h at 1000°C to form a surface α-Al₂O₃ layer was very effective in reducing the mass loss of specimens in the hot and cold legs of the most recent TCL that was operated for 1000 h with a peak temperature of 700°C. However, unlike previous experiments, the postexposure room temperature ductility of many of the APMT specimens was degraded to <10% total elongation, and many of the specimens at the highest temperature (>680°C) were severely damaged or were not recovered. Wide-angle X-ray scattering found that the pre-formed α-Al₂O₃ scale transformed to a mixture of trigonal and tetragonal LiAlO₂. The overall results suggest that the maximum temperature for FeCrAl is limited to <700°C.

Original language	English
Pages (from-to)	761-765
Number of pages	5
Journal	Fusion Science and Technology
Volume	77
Issue number	7-8
DOIs	https://doi.org/10.1080/15361055.2021.1898305
State	Published - 2021

Funding

The experimental work was conducted by A. Willoughby, M. Stephens, B. Johnston, V. Cox, and T. Lowe. M. Romedenne provided useful comments on the paper. This research was funded by the U.S. Department of Energy’s Office of Fusion Energy Sciences. This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the peer-reviewed, accepted form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ). The experimental work was conducted by A. Willoughby, M. Stephens, B. Johnston, V. Cox, and T. Lowe. M. Romedenne provided useful comments on the paper. This research was funded by the U.S. Department of Energy’s Office of Fusion Energy Sciences. This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the peer-reviewed, accepted form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

Funders	Funder number
DOE Public Access Plan
United States Government
U.S. Department of Energy
Fusion Energy Sciences	DE-AC05-00OR22725

Keywords

AlO
FeCrAl
PbLi compatibility
dual-coolant lead-lithium blanket

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/15361055.2021.1898305

Cite this

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title = "Compatibility of FeCrAlMo in Flowing Pb-Li at 600°C to 700°C",

abstract = "A series of monometallic thermal convection loops (TCLs) has been conducted to determine the maximum temperature where FeCrAl alloys have compatibility with eutectic lead lithium (Pb-Li) for a dual-coolant fusion blanket. Pre-oxidizing commercial alloy APMT (Fe-21Cr-5Al-3Mo) for 2 h at 1000°C to form a surface α-Al2O3 layer was very effective in reducing the mass loss of specimens in the hot and cold legs of the most recent TCL that was operated for 1000 h with a peak temperature of 700°C. However, unlike previous experiments, the postexposure room temperature ductility of many of the APMT specimens was degraded to <10% total elongation, and many of the specimens at the highest temperature (>680°C) were severely damaged or were not recovered. Wide-angle X-ray scattering found that the pre-formed α-Al2O3 scale transformed to a mixture of trigonal and tetragonal LiAlO2. The overall results suggest that the maximum temperature for FeCrAl is limited to <700°C.",

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author = "Pint, {B. A.} and J. Jun and E. Cakmak and Sprouster, {D. J.} and N. Olynik and Snead, {L. L.}",

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doi = "10.1080/15361055.2021.1898305",

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AU - Jun, J.

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AU - Sprouster, D. J.

AU - Olynik, N.

AU - Snead, L. L.

PY - 2021

Y1 - 2021

N2 - A series of monometallic thermal convection loops (TCLs) has been conducted to determine the maximum temperature where FeCrAl alloys have compatibility with eutectic lead lithium (Pb-Li) for a dual-coolant fusion blanket. Pre-oxidizing commercial alloy APMT (Fe-21Cr-5Al-3Mo) for 2 h at 1000°C to form a surface α-Al2O3 layer was very effective in reducing the mass loss of specimens in the hot and cold legs of the most recent TCL that was operated for 1000 h with a peak temperature of 700°C. However, unlike previous experiments, the postexposure room temperature ductility of many of the APMT specimens was degraded to <10% total elongation, and many of the specimens at the highest temperature (>680°C) were severely damaged or were not recovered. Wide-angle X-ray scattering found that the pre-formed α-Al2O3 scale transformed to a mixture of trigonal and tetragonal LiAlO2. The overall results suggest that the maximum temperature for FeCrAl is limited to <700°C.

AB - A series of monometallic thermal convection loops (TCLs) has been conducted to determine the maximum temperature where FeCrAl alloys have compatibility with eutectic lead lithium (Pb-Li) for a dual-coolant fusion blanket. Pre-oxidizing commercial alloy APMT (Fe-21Cr-5Al-3Mo) for 2 h at 1000°C to form a surface α-Al2O3 layer was very effective in reducing the mass loss of specimens in the hot and cold legs of the most recent TCL that was operated for 1000 h with a peak temperature of 700°C. However, unlike previous experiments, the postexposure room temperature ductility of many of the APMT specimens was degraded to <10% total elongation, and many of the specimens at the highest temperature (>680°C) were severely damaged or were not recovered. Wide-angle X-ray scattering found that the pre-formed α-Al2O3 scale transformed to a mixture of trigonal and tetragonal LiAlO2. The overall results suggest that the maximum temperature for FeCrAl is limited to <700°C.

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KW - dual-coolant lead-lithium blanket

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Compatibility of FeCrAlMo in Flowing Pb-Li at 600°C to 700°C

Abstract

Funding

Keywords

UN SDGs

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