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Fatigue and Tensile Behavior of Cast, Hot-Rolled, and Severely Plastically Deformed AZ31 Magnesium Alloy
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SYSNO ASEP 0085714 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Fatigue and Tensile Behavior of Cast, Hot-Rolled, and Severely Plastically Deformed AZ31 Magnesium Alloy Title Únavové a tahové vlastnosti lité, za tepla válcované a intenzivní plastickou deformací zpracované hořčíkové slitiny AZ31 Author(s) Zúberová, Z. (DE)
Kunz, Ludvík (UFM-A) RID, ORCID
Lamark, T. T. (DE)
Estrin, Y. (DE)
Janeček, M. (CZ)Source Title Metallurgical and Materials Transactions A. - : Springer - ISSN 1073-5623
Roč. 38, č. 9 (2007), s. 1934-1940Number of pages 7 s. Action UFG-2006 Event date 25.09.2006-27.09.2006 VEvent location Cloister Irsee Country DE - Germany Event type WRD Language eng - English Country US - United States Keywords AZ31 ; Fatigue ; ECAP ; squeeze casting ; hot rolling Subject RIV JG - Metallurgy R&D Projects 1P05ME804 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation Experimental examination of fatigue behaviour of Mg alloy AZ31 produced by squeeze casting, hot rolling and equal channel angular pressing (ECAP) has been performed. Squeeze cast AZ31 had coarse grains; while the hot rolled material had the grain size of 3-20 µm. The material pressed 4 times at 200 °C using the ECAP technique, exhibited grain structure with the average grain size of about 1-2 μm. It was shown that low- and high-cycle fatigue behaviour under symmetric loading at room temperature and with loading frequency of 20 Hz is strongly dependent on the technique employed in producing the alloy. ECAP improves the fatigue life of the material in the low-cycle region over that of the squeeze cast material. However, the fatigue life of AZ31 after ECAP was slightly lower than that of the hot rolled material. In the high-cycle region the hot rolled material and the material that underwent ECAP exhibit the same fatigue strength, which is superior to that of the squeeze cast alloy. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2008
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