Počet záznamů: 1
The link between microstructure and creep in aluminum processed by equal-channel angular pressing
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SYSNO ASEP 0343476 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The link between microstructure and creep in aluminum processed by equal-channel angular pressing Tvůrce(i) Saxl, Ivan (MU-W) RID, SAI
Sklenička, Václav (UFM-A) RID, ORCID
Ilucová, Lucia (MU-W) SAI
Svoboda, Milan (UFM-A) RID, ORCID
Dvořák, Jiří (UFM-A) RID, ORCID
Král, Petr (UFM-A) RID, ORCIDCelkový počet autorů 6 Zdroj.dok. Materials Science and Engineering A Structural Materials Properties Microstructure and Processing. - : Elsevier - ISSN 0921-5093
Roč. 503, 1-2 (2009), s. 82-85Poč.str. 4 s. Akce 1st International Symposium on Bulk Nanostructures Materials - From Fundamentals to Innovations Datum konání 14.08.2007-18.08.2007 Místo konání Ufa Země RU - Rusko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova aluminum ; ECAP ; grain structure ; homogeneity ; creep life Vědní obor RIV BA - Obecná matematika CEP IAA2041301 GA AV ČR - Akademie věd GA201/06/0302 GA ČR - Grantová agentura ČR CEZ AV0Z10190503 - MU-W (2005-2011) AV0Z20410507 - UFM-A (2005-2011) UT WOS 000263873100021 Anotace The creep life of pure ultrafine-grained aluminum produced by equal-channel angular pressing and examined at 473 K, 15-20 MPa, continually decreases with the increasing number N of passes in spite of a considerable grain refinement. In order to explain this behavior, a detailed microstructural study has been carried out by means of electron backscatter diffraction at four different lower bounds of subgrain boundary misorientation Delta = 2 degrees, 5 degrees, 10 degrees and 15 degrees. At low N = 1, 2, the misorientation of the majority of boundaries is very low (Delta < 5 degrees); the relative fractions of the true boundary (Delta >= 15 degrees) area do not exceed 10% and the creep strain is very slow. With the increasing N, the mutual misorientation of neighboring subgrains grows. the deformation processes can proceed faster and the creep life is substantially shortened (the creep fracture elongation grows only slowly). Pracoviště Matematický ústav Kontakt Jarmila Štruncová, struncova@math.cas.cz, library@math.cas.cz, Tel.: 222 090 757 Rok sběru 2011
Počet záznamů: 1