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Mechanical Properties of New Generation ODS Steels Measured by Small Punch Test Technique
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SYSNO ASEP 0481534 Document Type A - Abstract R&D Document Type O - Ostatní Title Mechanical Properties of New Generation ODS Steels Measured by Small Punch Test Technique Author(s) Bártková, Denisa (UFM-A)
Dymáček, Petr (UFM-A) RID, ORCID
Hadraba, Hynek (UFM-A) RID, ORCID
Husák, Roman (UFM-A)
Šiška, Filip (UFM-A) RID, ORCID
Stratil, Luděk (UFM-A) ORCIDNumber of authors 6 Source Title METAL 2017: 26th International Conference on Metallurgy and Materials: abstracts. - Ostrava : Tanger Ltd., 2017 - ISBN 978-80-87294-73-4
S. 117-118Number of pages 2 s. Action METAL 2017 - International Conference on Metallurgy and Materials /26./ Event date 24.05.2017 - 26.05.2017 VEvent location Brno Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords small punch test ; ODS steels ; mechanical properties Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GA14-25246S GA ČR - Czech Science Foundation (CSF) GJ15-21292Y GA ČR - Czech Science Foundation (CSF) Institutional support UFM-A - RVO:68081723 Annotation The ODS (oxide dispersion strengthened) steels are promising materials for high temperature applications due to their strength and creep resistance at high temperatures. The new generation of 9Cr1W ferritic (ODS) steels with yttrium and aluminum oxides have been developed at IPM. The oxide particles are introduced into microstructure by direct adding and by internal oxidation. The Small Punch Test method is used for mechanical properties evaluation as it needs only small amount of material. The typical specimen is a disc with 8 mm diameter and O.5 mm thickness. The disc is penetrated by a punch with hemispherical tip and force-deflection -time dependencies are measured. The results of small punch tests have been compared to the results of the tensile tests performed on the same materials. The tests have been performed at the room temperature and 600°C. The values of yield stress and ultimate strength are correlated and compared with derived theoretical relations. The comparison shows good correlation between the results of both techniques which confirms that small punch test can be the useful method for obtaining mechanical properties from a limited amount of material. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2018
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