Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state

In a core disruptive accident scenario, boron carbide, which is used as a control rod material, may melt below the melting temperature of stainless steel owing to the eutectic reaction with them. The eutectic mixture produced is assumed to extensively relocate in the degraded core, and this behavior...

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Autores principales:	Toshihide TAKAI, Tomohiro FURUKAWA, Hidemasa YAMANO
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2021
Materias:	boron carbide fast reactor severe accident stainless steel thermophysical property Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/aafc80e53d9e4042a7ae190eec911a9b
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spelling	oai:doaj.org-article:aafc80e53d9e4042a7ae190eec911a9b2021-11-29T06:09:58ZThermophysical properties of austenitic stainless steel containing boron carbide in a solid state2187-974510.1299/mej.20-00540https://doaj.org/article/aafc80e53d9e4042a7ae190eec911a9b2021-07-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/8/4/8_20-00540/_pdf/-char/enhttps://doaj.org/toc/2187-9745In a core disruptive accident scenario, boron carbide, which is used as a control rod material, may melt below the melting temperature of stainless steel owing to the eutectic reaction with them. The eutectic mixture produced is assumed to extensively relocate in the degraded core, and this behavior plays an important role in significantly reducing the neutronic reactivity. However, these behaviors have never been simulated in previous severe accident analysis. To contribute to the improvement of the core disruptive accident analysis code to simulate these eutectic melting and relocation behavior, the thermophysical property database of the eutectic mixture implemented into the analysis code should be developed. As part of this database development, this study measured the thermophysical properties of the eutectic mixture in the solid state. In this study, pre-alloyed austenitic stainless steel containing boron carbide, which has the prescribed concentration of boron carbide and is homogeneous, is used as eutectic samples to reduce the uncertainty of samples and achieve accurate measurement. Based on these evaluation results, the effect of adding boron carbide on the thermophysical properties of austenitic stainless steel are discussed. Furthermore, regression equations that show the temperature (and boron carbide concentration) dependence are created for each thermophysical property.Toshihide TAKAITomohiro FURUKAWAHidemasa YAMANOThe Japan Society of Mechanical Engineersarticleboron carbidefast reactorsevere accidentstainless steelthermophysical propertyMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 8, Iss 4, Pp 20-00540-20-00540 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	boron carbide fast reactor severe accident stainless steel thermophysical property Mechanical engineering and machinery TJ1-1570
spellingShingle	boron carbide fast reactor severe accident stainless steel thermophysical property Mechanical engineering and machinery TJ1-1570 Toshihide TAKAI Tomohiro FURUKAWA Hidemasa YAMANO Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state
description	In a core disruptive accident scenario, boron carbide, which is used as a control rod material, may melt below the melting temperature of stainless steel owing to the eutectic reaction with them. The eutectic mixture produced is assumed to extensively relocate in the degraded core, and this behavior plays an important role in significantly reducing the neutronic reactivity. However, these behaviors have never been simulated in previous severe accident analysis. To contribute to the improvement of the core disruptive accident analysis code to simulate these eutectic melting and relocation behavior, the thermophysical property database of the eutectic mixture implemented into the analysis code should be developed. As part of this database development, this study measured the thermophysical properties of the eutectic mixture in the solid state. In this study, pre-alloyed austenitic stainless steel containing boron carbide, which has the prescribed concentration of boron carbide and is homogeneous, is used as eutectic samples to reduce the uncertainty of samples and achieve accurate measurement. Based on these evaluation results, the effect of adding boron carbide on the thermophysical properties of austenitic stainless steel are discussed. Furthermore, regression equations that show the temperature (and boron carbide concentration) dependence are created for each thermophysical property.
format	article
author	Toshihide TAKAI Tomohiro FURUKAWA Hidemasa YAMANO
author_facet	Toshihide TAKAI Tomohiro FURUKAWA Hidemasa YAMANO
author_sort	Toshihide TAKAI
title	Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state
title_short	Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state
title_full	Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state
title_fullStr	Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state
title_full_unstemmed	Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state
title_sort	thermophysical properties of austenitic stainless steel containing boron carbide in a solid state
publisher	The Japan Society of Mechanical Engineers
publishDate	2021
url	https://doaj.org/article/aafc80e53d9e4042a7ae190eec911a9b
work_keys_str_mv	AT toshihidetakai thermophysicalpropertiesofausteniticstainlesssteelcontainingboroncarbideinasolidstate AT tomohirofurukawa thermophysicalpropertiesofausteniticstainlesssteelcontainingboroncarbideinasolidstate AT hidemasayamano thermophysicalpropertiesofausteniticstainlesssteelcontainingboroncarbideinasolidstate
_version_	1718407605274017792

Thermophysical properties of austenitic stainless steel containing boron carbide in a solid state

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