Počet záznamů: 1
Cyclic softening in the MA956 ODS steel
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SYSNO ASEP 0449380 Druh ASEP A - Abstrakt Zařazení RIV Není vybrán druh dokumentu Název Cyclic softening in the MA956 ODS steel Tvůrce(i) Kuběna, Ivo (UFM-A) RID, ORCID
Polák, Jaroslav (UFM-A) RID, ORCID
Kruml, Tomáš (UFM-A) RID, ORCIDCelkový počet autorů 3 Zdroj.dok. ICM 12 - Book of abstracts. - Germany, Karlsruhe, 2015
S. 378Poč.str. 1 s. Akce ICM 12 – International Conference on the Mechanical Behavior of Materials /12./ Datum konání 10.05.2015-14.05.2015 Místo konání Karlsruhe Země DE - Německo Typ akce WRD Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova ODS steel ; low cycle fatigue, ; microstructure ; cyclic softening Vědní obor RIV JL - Únava materiálu a lomová mechanika Institucionální podpora UFM-A - RVO:68081723 Anotace High chromium steel (MA956) prepared by mechanical alloying (MA) and strengthened by fine oxide dispersion was investigated. Corse microstructure with grains larger than 100 mm was revealed. The oxide distribution was analyzed by the means of transmission electron microscopy. Specimens were cycled with constant strain amplitude and strain rate at room temperature. Continuous cyclic softening consisting of three stages was measured. Short initial stage of rapid cyclic softening was followed by relatively long stage where the softening rate is constant and lower than the one measured in the first stage. In last stage, cyclic softening rate again increases, but this rather influenced by the growth of long cracks. Cyclic softening and role of oxide dispersion was discussed in relation with microstructural observations. Moreover, microstructure and cyclic softening of the MA956 steel is compared with different ODS steels. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2016
Počet záznamů: 1