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The hyperbolic sine relation and dip test data in constant strain rate compression experiments
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SYSNO ASEP 0353874 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The hyperbolic sine relation and dip test data in constant strain rate compression experiments Author(s) Kruml, Tomáš (UFM-A) RID, ORCID
Coddet, O. (CH)
Martin, J. L. (CH)Number of authors 3 Source Title Journal of Physics: Conference Series. - : Institute of Physics Publishing - ISSN 1742-6588
Roč. 240, - (2010), 012028Number of pages 4 s. Action ICSMA-15 (15th International Conference on the Strength of Materials) Event date 16.08.2009-21.08.2009 VEvent location Dresden Country DE - Germany Event type WRD Language eng - English Country GB - United Kingdom Keywords dip test ; effective stress ; compression Subject RIV JJ - Other Materials CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000286515800028 DOI 10.1088/1742-6596/240/1/012028 Annotation Single crystals of Ni3Al, intrinsic Ge, Cu, Cu with 5at%Al and 7.5at%Al are submitted to constant strain rate compression tests and stress reduction experiments. Curves of the initial creep rate as a function of the amount of stress reduction are analysed in terms of a hyperbolic sine relation based on the thermal activation of the dislocation velocity. It is shown that this relation satisfactorily fits the curves of the two first crystals. However, this is not observed for the three last ones. Reasons for this behaviour are proposed as well as a method for the effective stress evaluation. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
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