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High temperature service embrittlement of EUROFER´97 steel
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SYSNO ASEP 0354284 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title High temperature service embrittlement of EUROFER´97 steel Author(s) Stratil, Luděk (UFM-A) ORCID
Hadraba, Hynek (UFM-A) RID, ORCID
Dlouhý, Ivo (UFM-A) RID, ORCIDNumber of authors 3 Source Title Acta Metallurgica Slovaca - ISSN 1335-1532
Roč. 1, č. 2 (2010), s. 142-145Number of pages 4 s. Action Fraktografia 2009 Event date 08.11.2009-11.11.2009 VEvent location Stará Lesná Country SK - Slovakia Event type EUR Language eng - English Country SK - Slovakia Keywords Eurofer´97 ; isothermal ageing ; embrittlement ; impact properties Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA106/08/1397 GA ČR - Czech Science Foundation (CSF) 1QS200410502 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation The aim of the work was to describe effect of long-time ageing on the microstructure and fracture properties of the Eurofer´97 steel. The embrittlement of the high chromium ferritic-martensitic implies important limitation for use of these steels causing carbide coarsening and/or intercrystalline embrittlement. Detailed microstructure studies were carried out on the steel in as-received state and in state after long-time thermal ageing for 550°C/5.000 h. Mechanical properties were evaluated by means of Charpy impact testing. Only a slight growth of the particles and partial recrystalization of the subgrains after thermal ageing has been observed. The isothermal ageing caused shift in tDBTT about +5°C Degradation of the impact properties was probably caused by synergic effect of carbide coarsening and mind recrystalization of the subgrains Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
Number of the records: 1