Počet záznamů: 1  

Creep in Al single crystal processed by equal-channel angular pressing

  1. 1.
    0384678 - ÚFM 2013 RIV RU eng J - Článek v odborném periodiku
    Král, Petr - Dvořák, Jiří - Šedá, Petra - Jäger, Aleš - Sklenička, Václav
    Creep in Al single crystal processed by equal-channel angular pressing.
    Reviews on Advanced Materials Science. Roč. 31, č. 2 (2012), s. 138-144. ISSN 1606-5131. E-ISSN 1605-8127.
    [Bulk nanostructured materials, BNM 2011. Ufa, 23.08.2011-26.08.2011]
    Grant CEP: GA AV ČR KAN300100801; GA ČR GPP108/10/P469
    Výzkumný záměr: CEZ:AV0Z20410507; CEZ:AV0Z10100520
    Klíčová slova: equal-channel angular pressing * single crystal * creep behaviour
    Kód oboru RIV: JJ - Ostatní materiály; BM - Fyzika pevných látek a magnetismus (FZU-D)
    Impakt faktor: 1.017, rok: 2012

    In this work the creep behavior and microstructure changes in aluminum single crystal during equal-channel angular pressing (ECAP) were investigated in order to understand the relationships between microstructure and creep behavior. 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. Microstructures of single crystals processed by 1 and 4 ECAP passes were characterized by transmission electron microscope (TEM) and scanning electron microscope (SEM) equipped with the electron backscatter diffraction unit (EBSD). Microstructure analyses showed inhomogeneity of microstructure after ECAP and the increase in the fraction of HAGB’s (>15°) with increasing number of ECAP passes. 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 behavior is influenced by cooperative grain boundary sliding along mesoscopic shear bands.
    Trvalý link: http://hdl.handle.net/11104/0214245

     
     
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.