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Fracture behaviour of ODS MA956 steel at elevated and high temperatures
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SYSNO ASEP 0466527 Document Type O - Others R&D Document Type Others Title Fracture behaviour of ODS MA956 steel at elevated and high temperatures Author(s) Šiška, Filip (UFM-A) RID, ORCID
Stratil, Luděk (UFM-A) ORCID
Šmíd, Miroslav (UFM-A) RID, ORCID
Luptáková, Natália (UFM-A) RID, ORCID
Záležák, Tomáš (UFM-A) RID, ORCID
Bártková, Denisa (UFM-A)
Dlouhý, Ivo (UFM-A) RID, ORCIDNumber of authors 7 Year of issue 2016 Language eng - English Country IT - Italy Keywords ODS steel ; MA956 ; fracture ; dislocation Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GJ15-21292Y GA ČR - Czech Science Foundation (CSF) ED1.1.00/02.0068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFM-A - RVO:68081723 Annotation Fracture behaviour of oxide dispersion strengthened steel MA956 at elevated and high temperatures is presented. Tensile and fracture toughness tests in the temperature range from 200 to 700°C were performed. The micromechanism of fracture was characterized by fractographic analysis in scanning electron microscope and the dislocations structures under the fracture surfaces were observed in transmission electron microscope. The tensile properties and the fracture toughness properties decrease with increasing temperature. This effect is more pronounced above 400°C. It is connected with the change of fracture micromechanism caused by different dislocation mechanisms. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2017
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