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High temperature low cycle fatigue of superalloy Inconel 738LC
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SYSNO ASEP 0093510 Druh ASEP A - Abstrakt Zařazení RIV Záznam nebyl označen do RIV Zařazení RIV Není vybrán druh dokumentu Název High temperature low cycle fatigue of superalloy Inconel 738LC Překlad názvu Vysokoteplotní nízkocyklová únava superslitiny Inconel 738LC Tvůrce(i) Obrtlík, Karel (UFM-A) RID, ORCID
Chlupová, Alice (UFM-A) RID, ORCID
Petrenec, Martin (UFM-A)
Polák, Jaroslav (UFM-A) RID, ORCIDZdroj.dok. Programme and The Book of Abstracts. - Belgrade : Institute of Technical Sciences of SASA, 2007 - ISBN 978-86-80321-11-0
S. 138-138Poč.str. 1 s. Akce Yugoslav Conference on Advanced Materials /2./ Datum konání 15.09.1997-19.09.1997 Místo konání Herceg Novi Země YU - YU Typ akce EUR Jazyk dok. eng - angličtina Země vyd. CS - CS Klíč. slova Low cycle fatigue ; Inconel 738LC ; strain localization ; fatigue life curve Vědní obor RIV JL - Únava materiálu a lomová mechanika CEP 1QS200410502 GA AV ČR - Akademie věd GA106/07/1507 GA ČR - Grantová agentura ČR GP106/05/P521 GA ČR - Grantová agentura ČR CEZ AV0Z20410507 - UFM-A (2005-2011) Anotace Cylindrical specimens of cast polycrystalline nickel base superalloy Inconel 738LC were cyclically strained under total strain control at 23, 500, 700 and 800 °C to fracture. Cyclic hardening/softening curves, cyclic stress-strain curves, and fatigue life curves were obtained at four temperatures. Surface relief was studied in specimens fatigued to failure using scanning electron microscopy. Cyclic hardening/softening behaviour depends both on temperature and strain amplitude. Low amplitude straining was characterised by saturation of the stress amplitude. In high amplitude straining a pronounced hardening was found which was followed by saturation at room temperature or tendency to it at 700 and by cyclic softening at 800 °C. The cyclic stress-strain curves can be fitted by power law. They are shifted to lower stresses with increasing temperature. Fatigue life curves can be approximated by the Manson-Coffin and Basquin laws. Slip markings were detected on specimen surface at all test temperatures. When temperature increases the density of slip markings decreases and the Manson-Coffin and Basquin curves are shifted to lower lives. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2008
Počet záznamů: 1