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THE EFFECTS OF HIGH TEMPERATURE HELIUM GAS ON THE FRACTURE BEHAVIOUR OF ODS MA957
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SYSNO ASEP 0473137 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title THE EFFECTS OF HIGH TEMPERATURE HELIUM GAS ON THE FRACTURE BEHAVIOUR OF ODS MA957 Author(s) Rozumová, L. (CZ)
Hojná, A. (CZ)
Kalivodová, J. (CZ)
Bublíková, P. (CZ)
Hadraba, Hynek (UFM-A) RID, ORCID
Di Gabriele, F. (CZ)Number of authors 6 Source Title METAL 2015: 24th International Conference on Metallurgy and Materials, Conference Proceedings. - Ostrava : TANGER Ltd, 2015 - ISBN 978-80-87294-62-8 Pages s. 833-838 Number of pages 6 s. Publication form Medium - C Action METAL 2015 - International Conference on Metallurgy and Materials /24./ Event date 03.06.2016 - 05.06.2016 VEvent location Brno Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords ODS ; MA957 ; Helium Subject RIV JG - Metallurgy R&D Projects GA14-25246S GA ČR - Czech Science Foundation (CSF) Institutional support UFM-A - RVO:68081723 UT WOS 000374706100133 Annotation Oxide-dispersion-strengthened steel (ODS) MA957 has been studied as a candidate material for Tritium Breeding Blanket for fusion reactors with helium coolant, where temperatures 250-650 degrees C are expected. Helium is one of type as primary coolant in High Temperature Reactor and Gas Cooled Fast Reactor with working temperature 500-1000 degrees C.
This work presents results of the study of behaviour of ODS (MA957) under influence of high temperature helium environment. Microstructure of the material and the interaction with He was investigated. The average exposure temperature was held at 720 degrees C. Subsequently, the surface changes were determined. Impact testing and material surfaces were studied in detail by means of SEM and TEM microscopy. It is essential to understand the He effect on microstructure and mechanical properties of structural materials since the He embrittlement in TBB may be significant.Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2017
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