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Small fatigue crack growth in aluminium alloy EN-AW 6082/T6
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SYSNO ASEP 0346321 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Small fatigue crack growth in aluminium alloy EN-AW 6082/T6 Author(s) Jíša, D. (CZ)
Liškutín, P. (CZ)
Kruml, Tomáš (UFM-A) RID, ORCID
Polák, Jaroslav (UFM-A) RID, ORCIDNumber of authors 4 Source Title International Journal of Fatigue. - : Elsevier - ISSN 0142-1123
Roč. 32, č. 12 (2010), s. 1913-1920Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords Aluminium alloys ; small cracks ; grack growth rate Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA101/07/1500 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000281344300004 DOI 10.1016/j.ijfatigue.2010.06.003 Annotation The kinetics of small fatigue crack growth at room temperature was measured using light microscopy observation of the cracks in a shallow notch of a cylindrical specimen. Symmetrical tension–compression cycling was adopted. The growth of the crack was measured within the range of half surface crack length from 10 μm up to 2 mm. A linear dependence between the crack growth rate and the crack length, observed in case of steels, was confirmed to be valid in the aluminium 6082/T6 alloy, too. The crack growth coefficient kg increases with plastic strain amplitude; this dependence is well described by a power law. The fatigue life prediction based on the crack growth measurements is compared with the Manson-Coffin law. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
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