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Carbon in sodium - A status review of the U.S.A. R and D work

Abstract

Liquid Metal Fast Breeder Reactors contain several types of steel in primary and secondary sodium systems. Austenitic stainless steels are used for in-core components, valves, heat exchangers, tanks and fuel cladding in primary systems. In power generating plants, the secondary or intermediate heat transport system may contain both austenitic and ferritic steel such as 2-1/4 Cr-l Mo type. Sodium circulating throughout the plant contains a number of impurities, metallic and non-metallic, with the steel interstitial elements carbon, hydrogen and oxygen being of prime importance. These elements can affect corrosion rates and mechanical behavior of materials. In the case of carbon, the sodium provides a transport medium with carburization and decarburization occurring in several parts of a system at rates depending upon temperature and types of steel. The US Sodium Technology R and D programs have investigated the behavior, transport, measurement and control of carbon in sodium. Measurement and control methods for carbon-containing materials which might contaminate the plant systems during reactor operation have also been studied. During the early 1970's, several US laboratories were active in studying carbon solubility, activity in sodium and interstitial transfer using both theoretical and experimental approaches. Modelling studies were done and models were used to  More>>
Authors:
McCown, J J; Bagnall, C [1] 
  1. HEDL, Richland, WA (United States)
Publication Date:
May 01, 1980
Product Type:
Conference
Report Number:
IWGFR-33
Resource Relation:
Conference: IAEA-IWGFR specialists' meeting on carbon in sodium, Harwell (United Kingdom), 27-30 Nov 1979; Other Information: 31 refs, 14 figs, 6 tabs; PBD: May 1980; Related Information: In: Specialists' meeting on carbon in sodium. Summary report, 194 pages.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; AUSTENITIC STEELS; CARBON METERS; CARBURIZATION; CLINCH RIVER BREEDER REACTOR; DECARBURIZATION; FERRITIC STEELS; FFTF REACTOR; LMFBR TYPE REACTORS; MECHANICAL PROPERTIES; PRIMARY COOLANT CIRCUITS; REACTOR COMPONENTS; REACTOR MATERIALS; SECONDARY COOLANT CIRCUITS; SODIUM; SOLUBILITY
OSTI ID:
20244558
Research Organizations:
International Atomic Energy Agency, International Working Group on Fast Reactors, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA0200946017262
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 48-65
Announcement Date:
May 16, 2002

Citation Formats

McCown, J J, and Bagnall, C. Carbon in sodium - A status review of the U.S.A. R and D work. IAEA: N. p., 1980. Web.
McCown, J J, & Bagnall, C. Carbon in sodium - A status review of the U.S.A. R and D work. IAEA.
McCown, J J, and Bagnall, C. 1980. "Carbon in sodium - A status review of the U.S.A. R and D work." IAEA.
@misc{etde_20244558,
title = {Carbon in sodium - A status review of the U.S.A. R and D work}
author = {McCown, J J, and Bagnall, C}
abstractNote = {Liquid Metal Fast Breeder Reactors contain several types of steel in primary and secondary sodium systems. Austenitic stainless steels are used for in-core components, valves, heat exchangers, tanks and fuel cladding in primary systems. In power generating plants, the secondary or intermediate heat transport system may contain both austenitic and ferritic steel such as 2-1/4 Cr-l Mo type. Sodium circulating throughout the plant contains a number of impurities, metallic and non-metallic, with the steel interstitial elements carbon, hydrogen and oxygen being of prime importance. These elements can affect corrosion rates and mechanical behavior of materials. In the case of carbon, the sodium provides a transport medium with carburization and decarburization occurring in several parts of a system at rates depending upon temperature and types of steel. The US Sodium Technology R and D programs have investigated the behavior, transport, measurement and control of carbon in sodium. Measurement and control methods for carbon-containing materials which might contaminate the plant systems during reactor operation have also been studied. During the early 1970's, several US laboratories were active in studying carbon solubility, activity in sodium and interstitial transfer using both theoretical and experimental approaches. Modelling studies were done and models were used to predict FFTF and CRBRP materials requirements, component design and plant operating conditions. Over the past several years, carbon work has not been heavily emphasized. Most of the R and D studies have centered on improving chemical analysis methods for measuring active carbon, both by on-line monitors and by metal foil equilibration procedures; and on studies of pump oil-sodium reactions, reaction products, temperature effects and oil leak detection methods. One program at General Electric is investigating carburization-decarburization in a ferritic-austenitic system simulating conditions expected in sodium cooled secondary loops.}
place = {IAEA}
year = {1980}
month = {May}
}