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Fatigue crack propagation within the austempered ductile iron microstructure
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SYSNO ASEP 0366908 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Fatigue crack propagation within the austempered ductile iron microstructure Author(s) Bubenko, L. (SK)
Konečná, R. (SK)
Kunz, Ludvík (UFM-A) RID, ORCIDNumber of authors 4 Source Title Acta Metallurgica Slovaca, 1. - Košice : Hutnícka fakulta Technickej univerzity, 2010 / Longauerová M. - ISSN 1338-1156
Roč. 17, č. 1 (2011), s. 18-25Number of pages 8 s. Language eng - English Country SK - Slovakia Keywords casting ; austempering ; fatigue ; fracture ; microstructure Subject RIV JG - Metallurgy CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation Austempered ductile iron (ADI) is a material with a wide range of potential application, especially in the automotive and earth moving machinery industries. Cast components usually subjected to variable dynamic loading may fail by sudden, unexpected fatigue fractures. Thus, fatigue crack propagation resistance is one of the most important material properties. The aim of this contribution is to determine the fatigue crack propagation curve da/dN vs. Ka and the threshold amplitude of stress intensity factor Kath. Microstructure and its influence on crack initiation and propagation is analyzed. A diversity of crack propagation modes at low Ka and high Ka was observed. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2012
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