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Different creep behaviour and microstructure of ECAP aluminium with the identical ECAP history
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SYSNO ASEP 0349529 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Different creep behaviour and microstructure of ECAP aluminium with the identical ECAP history Tvůrce(i) Král, Petr (UFM-A) RID, ORCID
Dvořák, Jiří (UFM-A) RID, ORCID
Sklenička, Václav (UFM-A) RID, ORCID
Svoboda, Milan (UFM-A) RID, ORCIDCelkový počet autorů 4 Zdroj.dok. METAL 2010. Conference proceedings. - Ostrava : Tanger, s.r.o, 2010 - ISBN 978-80-87294-15-4 Rozsah stran čl. pe10 Poč.str. 6 s. Forma vydání CD-ROM - CD-ROM Akce Metal 2010. International Conference on Metallurgy and Materials /19./ Datum konání 18.05.2010-20.05.2010 Místo konání Rožnov pod Radhoštěm Země CZ - Česká republika Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova orientation image microscopy ; creep ; ultrafine - grained microstructure Vědní obor RIV JJ - Ostatní materiály CEP GPP108/10/P469 GA ČR - Grantová agentura ČR CEZ AV0Z20410507 - UFM-A (2005-2011) Anotace Experiments were conducted on extremely coarse - grained Al (99.99%. The subsequent extrusion passes were performed by route A (no rotation between subsequent passes) up to 2 ECAP passes. Creep tests in tension were performed on the as-pressed samples at 473 K and applied stress 15 MPa. It was found that the ultrafine - grained Al specimens with the same ECAP history showed the scatter in the creep properties. In this work the microstructure changes within grains with different crystallographic orientations and near their high - angle boundaries of coarse-grained state in the sample after different ECAP passes were studied. Mutual comparison of the results of microstructural characterization of microstructure of as-received coarse-grained state and the state after different ECAP passes were performed. It is concluded that the scatter in creep properties could be influenced by inhomogeneity of ECAP microstructure. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2011
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