Počet záznamů: 1
Kinetic study of static recrystallization in an Fe–Al–O ultra-fine-grained nanocomposite
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SYSNO ASEP 0482161 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Kinetic study of static recrystallization in an Fe–Al–O ultra-fine-grained nanocomposite Tvůrce(i) Bártková, Denisa (UFM-A)
Šmíd, Miroslav (UFM-A) RID, ORCID
Mašek, B. (CZ)
Svoboda, Jiří (UFM-A) RID, ORCID
Šiška, Filip (UFM-A) RID, ORCIDCelkový počet autorů 5 Zdroj.dok. Philosophical Magazine Letters. - : Taylor & Francis - ISSN 0950-0839
Roč. 97, č. 10 (2017), s. 379-385Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova recrystallization ; dislocation structures ; nanoscale precipitates ; microstructure ; abrupt grain coarsening Vědní obor RIV JL - Únava materiálu a lomová mechanika Obor OECD Audio engineering, reliability analysis CEP GJ15-21292Y GA ČR - Grantová agentura ČR LM2015069 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFM-A - RVO:68081723 UT WOS 000419398100001 EID SCOPUS 85029901914 DOI 10.1080/09500839.2017.1378445 Anotace A nearly abrupt coarsening of grains is observed in a newly developed Fe–Al–O ultra-fine-grained nanocomposite with a significant volume fraction (4%) of alumina nano-precipitates. The microstructure of the alloy was analysed in different states (as-received and annealed) by means of scanning electron microscopy, transmission electron microscopy (TEM) and hardness. The initial grain size 150–200 nm increases up to 50 micrometers during annealing 1000 °C/8 h and thereafter demonstrates saturation. A linear correlation between volume fraction of coarse grains and hardness was found. It was identified by TEM that alumina nano-precipitates stabilize the dislocation microstructure against recovery very effectively and the grain coarsening is due to fast growth of very few dislocation free grains. Thus, the observed grain coarsening has the attributes of static recrystallization. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2018
Počet záznamů: 1