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Creep in Al single crystal processed by equal-channel angular pressing
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SYSNO ASEP 0367043 Document Type A - Abstract R&D Document Type Není vybrán druh dokumentu Title Creep in Al single crystal processed by equal-channel angular pressing Author(s) Král, Petr (UFM-A) RID, ORCID
Dvořák, Jiří (UFM-A) RID, ORCID
Šedá, Petra (FZU-D)
Jäger, Aleš (FZU-D) RID, ORCID
Sklenička, Václav (UFM-A) RID, ORCIDNumber of authors 5 Source Title BNM-2011, THE THIRD INTERNATIONAL SYMPOSIUM
-, č. 3 (2011), od 50-do 50Number of pages 1 s. Action Bulk nanostructured materials: from fundamentals to innovations BNM2011 Event date 23.08.2011-26.08.2011 VEvent location Ufa Country RU - Russian Federation Event type WRD Language eng - English Country RU - Russian Federation Keywords ultrafine-grained materials ; creep behaviour ; equal-channel angular pressing Subject RIV JJ - Other Materials R&D Projects KAN300100801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GPP108/10/P469 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) AV0Z10100520 - FZU-D (2005-2011) Annotation In this work the creep behaviour and microstructure changes in aluminium single crystal during equal-channel angular pressing (ECAP) were investigated in order to understand the relationships between ECAP microstructure and creep behaviour. The investigated crystal was oriented with {111} parallel to the shear plane and 110 was parallel to the direction of shear. During ECAP by route A at room temperature single-crystalline sample was subsequently transformed into the polycrystalline material. Microstructure of samples processed by 1 and 4 ECAP passes was characterized by transmission electron microscope (TEM) and scanning electron microscope (SEM) equipped with the electron backscatter diffraction unit (EBSD). Tensile creep tests at temperature of 373 K and at applied stress of 50 MPa were performed on the Al single crystal after one and four ECAP passes. It was found that the creep behaviour is influenced by cooperative grain boundary sliding along mesoscopic shear bands. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2012
Number of the records: 1