Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis
In a postulated severe accidental condition of sodium-cooled fast reactor (SFR), the eutectic reaction between boron carbide (B4C) as control rod element and stainless steel (SS) as control rod cladding or related structure materials may take place. Thus, the kinetic behavior of the B4C-SS eutectic...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2021-08-01
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| Series: | Mechanical Engineering Journal |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/mej/8/4/8_20-00542/_pdf/-char/en |
| _version_ | 1819195378126290944 |
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| author | Shin KIKUCHI Kinya NAKAMURA Hidemasa YAMANO |
| author_facet | Shin KIKUCHI Kinya NAKAMURA Hidemasa YAMANO |
| author_sort | Shin KIKUCHI |
| collection | DOAJ |
| description | In a postulated severe accidental condition of sodium-cooled fast reactor (SFR), the eutectic reaction between boron carbide (B4C) as control rod element and stainless steel (SS) as control rod cladding or related structure materials may take place. Thus, the kinetic behavior of the B4C-SS eutectic reaction is one of the important phenomena to be considered when evaluating the core disruptive accidents in SFR. In this study, for the first step to obtain the fundamental information on kinetic feature of the B4C-SS eutectic reaction and compare the pervious findings, the thermal analysis using the pellet samples of B4C and Type 316L SS as a different experimental approach was performed up to 1773 K at different heating rates of 2.5-10 K min-1. The differential thermal analysis (DTA) endothermic peaks for the B4C-SS eutectic reaction appeared from 1483K to 1534K and systematically shifted to higher temperatures with increasing heating rate. Based on this kinetic feature, apparent activation energy and pre-exponential factor for the B4C-SS eutectic reaction were determined by Kissinger method. It was found that the kinetic parameters obtained by thermal analysis were comparable to the literature values of the thinning experiment at high temperatures. In addition, the microstructure and element distribution formed in the interdiffusion layer composed of the B4C-SS system were analyzed by the electron probe microanalyzer (EPMA), which can provide key validation data on elemental interdiffusion behavior in the early stage of the eutectic reaction for reflecting the reaction kinetic modeling. |
| first_indexed | 2024-12-23T02:11:48Z |
| format | Article |
| id | doaj.art-7a47531750e4409683687f50e2002f34 |
| institution | Directory Open Access Journal |
| issn | 2187-9745 |
| language | English |
| last_indexed | 2024-12-23T02:11:48Z |
| publishDate | 2021-08-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Mechanical Engineering Journal |
| spelling | doaj.art-7a47531750e4409683687f50e2002f342022-12-21T18:03:46ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452021-08-018420-0054220-0054210.1299/mej.20-00542mejKinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysisShin KIKUCHI0Kinya NAKAMURA1Hidemasa YAMANO2Sector of Fast Reactor and Advanced Reactor Research and Development, Japan Atomic Energy AgencyEnergy Transformation Research Laboratory, Central Research Institute of Electric Power IndustrySector of Fast Reactor and Advanced Reactor Research and Development, Japan Atomic Energy AgencyIn a postulated severe accidental condition of sodium-cooled fast reactor (SFR), the eutectic reaction between boron carbide (B4C) as control rod element and stainless steel (SS) as control rod cladding or related structure materials may take place. Thus, the kinetic behavior of the B4C-SS eutectic reaction is one of the important phenomena to be considered when evaluating the core disruptive accidents in SFR. In this study, for the first step to obtain the fundamental information on kinetic feature of the B4C-SS eutectic reaction and compare the pervious findings, the thermal analysis using the pellet samples of B4C and Type 316L SS as a different experimental approach was performed up to 1773 K at different heating rates of 2.5-10 K min-1. The differential thermal analysis (DTA) endothermic peaks for the B4C-SS eutectic reaction appeared from 1483K to 1534K and systematically shifted to higher temperatures with increasing heating rate. Based on this kinetic feature, apparent activation energy and pre-exponential factor for the B4C-SS eutectic reaction were determined by Kissinger method. It was found that the kinetic parameters obtained by thermal analysis were comparable to the literature values of the thinning experiment at high temperatures. In addition, the microstructure and element distribution formed in the interdiffusion layer composed of the B4C-SS system were analyzed by the electron probe microanalyzer (EPMA), which can provide key validation data on elemental interdiffusion behavior in the early stage of the eutectic reaction for reflecting the reaction kinetic modeling.https://www.jstage.jst.go.jp/article/mej/8/4/8_20-00542/_pdf/-char/ensodium-cooled fast reactorsevere accidenteutectic reactionkinetic behaviorthermal analysisrate constant |
| spellingShingle | Shin KIKUCHI Kinya NAKAMURA Hidemasa YAMANO Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis Mechanical Engineering Journal sodium-cooled fast reactor severe accident eutectic reaction kinetic behavior thermal analysis rate constant |
| title | Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis |
| title_full | Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis |
| title_fullStr | Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis |
| title_full_unstemmed | Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis |
| title_short | Kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis |
| title_sort | kinetic study on eutectic reaction between boron carbide and stainless steel by differential thermal analysis |
| topic | sodium-cooled fast reactor severe accident eutectic reaction kinetic behavior thermal analysis rate constant |
| url | https://www.jstage.jst.go.jp/article/mej/8/4/8_20-00542/_pdf/-char/en |
| work_keys_str_mv | AT shinkikuchi kineticstudyoneutecticreactionbetweenboroncarbideandstainlesssteelbydifferentialthermalanalysis AT kinyanakamura kineticstudyoneutecticreactionbetweenboroncarbideandstainlesssteelbydifferentialthermalanalysis AT hidemasayamano kineticstudyoneutecticreactionbetweenboroncarbideandstainlesssteelbydifferentialthermalanalysis |