Number of the records: 1
Different creep behaviour and microstructure of ECAP aluminium with the identical ECAP history
- 1.
SYSNO ASEP 0349529 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Different creep behaviour and microstructure of ECAP aluminium with the identical ECAP history Author(s) Král, Petr (UFM-A) RID, ORCID
Dvořák, Jiří (UFM-A) RID, ORCID
Sklenička, Václav (UFM-A) RID, ORCID
Svoboda, Milan (UFM-A) RID, ORCIDNumber of authors 4 Source Title METAL 2010. Conference proceedings. - Ostrava : Tanger, s.r.o, 2010 - ISBN 978-80-87294-15-4 Pages čl. pe10 Number of pages 6 s. Publication form CD-ROM - CD-ROM Action Metal 2010. International Conference on Metallurgy and Materials /19./ Event date 18.05.2010-20.05.2010 VEvent location Rožnov pod Radhoštěm Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords orientation image microscopy ; creep ; ultrafine - grained microstructure Subject RIV JJ - Other Materials R&D Projects GPP108/10/P469 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation 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. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
Number of the records: 1