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Title: A study of the effects of minor additives to Pb-Bi eutectic: Designing novel Pb-Bi-X liquid alloys for heat transfer applications

Abstract

Lead-bismuth eutectic (LBE) is a promising heat transfer fluid candidate for fast-neutron nuclear reactors and for concentrating solar power systems, due to its low melting point and advantageous thermophysical properties, but suffers from causing liquid-metal corrosion in many solids used as structural materials. Adding a suitable element to LBE to form a ternary alloy, along with proper oxygen concentration in LBE at desired temperature, might provide a formation of the protective intermetallic layers besides the formation of protective oxides on the solid surface. In this study, novel Pb-Bi-X alloys, as improvement LBE, have been designed for a broad temperature range, with X additions selected based on thermodynamic considerations and modeling, and experimentally evaluated at 7000C. Thermodynamic calculus indicated Pb-Bi-Sb and Pb-Bi-Ge as the best candidates, and experiments provided some evidence of possible intermetallic formation of Sb with Fe-Cr-Al alloy constituents. The work pointed to the need for further research into the compatibility with structural materials at high temperatures.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Univ. of California, Los Angeles, CA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1482163
Alternate Identifier(s):
OSTI ID: 1613318; OSTI ID: 1713059
Grant/Contract Number:  
EE0005941
Resource Type:
Published Article
Journal Name:
Materials & Design
Additional Journal Information:
Journal Name: Materials & Design Journal Volume: 159 Journal Issue: C; Journal ID: ISSN 0264-1275
Publisher:
Elsevier
Country of Publication:
United Kingdom
Language:
English
Subject:
36 MATERIALS SCIENCE; materials science; solar energy; heat transfer; liquid metal; oxygen control; Fe-Cr-Al alloy; 14 SOLAR ENERGY; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; Liquid metal corrosion, Liquid heavy metal alloys, chemistry in liquid metals,

Citation Formats

Popović, M. P., Olmsted, D. L., Bolind, A. M., Asta, M., Sohn, S., Schroers, J., Shao, R., and Hosemann, P. A study of the effects of minor additives to Pb-Bi eutectic: Designing novel Pb-Bi-X liquid alloys for heat transfer applications. United Kingdom: N. p., 2018. Web. doi:10.1016/j.matdes.2018.08.044.
Popović, M. P., Olmsted, D. L., Bolind, A. M., Asta, M., Sohn, S., Schroers, J., Shao, R., & Hosemann, P. A study of the effects of minor additives to Pb-Bi eutectic: Designing novel Pb-Bi-X liquid alloys for heat transfer applications. United Kingdom. doi:10.1016/j.matdes.2018.08.044.
Popović, M. P., Olmsted, D. L., Bolind, A. M., Asta, M., Sohn, S., Schroers, J., Shao, R., and Hosemann, P. Sat . "A study of the effects of minor additives to Pb-Bi eutectic: Designing novel Pb-Bi-X liquid alloys for heat transfer applications". United Kingdom. doi:10.1016/j.matdes.2018.08.044.
@article{osti_1482163,
title = {A study of the effects of minor additives to Pb-Bi eutectic: Designing novel Pb-Bi-X liquid alloys for heat transfer applications},
author = {Popović, M. P. and Olmsted, D. L. and Bolind, A. M. and Asta, M. and Sohn, S. and Schroers, J. and Shao, R. and Hosemann, P.},
abstractNote = {Lead-bismuth eutectic (LBE) is a promising heat transfer fluid candidate for fast-neutron nuclear reactors and for concentrating solar power systems, due to its low melting point and advantageous thermophysical properties, but suffers from causing liquid-metal corrosion in many solids used as structural materials. Adding a suitable element to LBE to form a ternary alloy, along with proper oxygen concentration in LBE at desired temperature, might provide a formation of the protective intermetallic layers besides the formation of protective oxides on the solid surface. In this study, novel Pb-Bi-X alloys, as improvement LBE, have been designed for a broad temperature range, with X additions selected based on thermodynamic considerations and modeling, and experimentally evaluated at 7000C. Thermodynamic calculus indicated Pb-Bi-Sb and Pb-Bi-Ge as the best candidates, and experiments provided some evidence of possible intermetallic formation of Sb with Fe-Cr-Al alloy constituents. The work pointed to the need for further research into the compatibility with structural materials at high temperatures.},
doi = {10.1016/j.matdes.2018.08.044},
journal = {Materials & Design},
number = C,
volume = 159,
place = {United Kingdom},
year = {2018},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.matdes.2018.08.044

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