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Observation of Anisotropy of Creep Fracture Using Small Punch Test for Al-Al4C3 System Produced by Equal Channel Angular Pressing
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SYSNO ASEP 0364460 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Observation of Anisotropy of Creep Fracture Using Small Punch Test for Al-Al4C3 System Produced by Equal Channel Angular Pressing Author(s) Besterci, M. (SK)
Dobeš, Ferdinand (UFM-A) RID, ORCID
Ballóková, B. (SK)
Sülleiová, K. (SK)
Kvačkaj, T. (SK)Number of authors 5 Source Title High Temperature Materials and Processes. - : Walter de Gruyter - ISSN 0334-6455
Roč. 30, č. 3 (2011), s. 205-210Number of pages 6 s. Language eng - English Country DE - Germany Keywords Equal channel angular pressing ; small-punch creep ; fracture ; metal-matrix composites Subject RIV JI - Composite Materials R&D Projects 1QS200410502 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA200410801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000294208000002 DOI 10.1515/HTMP.2011.030 Annotation The anisotropy of the creep properties and fracture using small punch tests for the Al-Al4C3 system produced by ECAP were analysed in this work. Small punch creep tests under constant force were performed at the temperature of 623 K. It was shown that the fracture results, i.e. time to fracture and deflection at fracture were different in specimens with different orientation with respect to the axis of ECAP deformation. Fracture surface analysis of the tested small punch specimens was conducted. Fractures have transcrystalline ductile character. The fracture dimples are equiaxial as well as elongated in the dependence on strain direction. Fracture dimples are of two categories, the small ones sized from 0.1 to 0.5 mikron and large ones ranging from 3 to 6 mikron. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2012
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