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Thermal-mechanical fatigue behaviour and life prediction of oxide dispersion strengthened nickel-based superalloy PM1000

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dc.contributor.author Kovan, Volkan
dc.contributor.author Hammer, J.
dc.contributor.author Mai, R.
dc.contributor.author Yüksel, M.
dc.date.accessioned 2019-08-16T12:14:23Z
dc.date.available 2019-08-16T12:14:23Z
dc.date.issued 2008
dc.identifier.issn 1044-5803
dc.identifier.uri https://hdl.handle.net/11499/7024
dc.identifier.uri https://doi.org/10.1016/j.matchar.2008.02.004
dc.description.abstract Many studies of thermal-mechanical fatigue behaviour address steels, nickel-base superalloys or fiber-reinforced titanium alloys, but only rough data are available for powder metallurgical high-temperature materials. In this study, the cyclic deformation and lifetime behaviour of the powder metallurgical nickel-base superalloy PM1000 were investigated under thermal-mechanical fatigue conditions. Thermal-mechanical fatigue tests were performed in the temperature range of 450-850 °C. The phase angle between the mechanical strain and the thermal cycle (- 135°) is closely related to the appropriate operating conditions in aero-engines. Thermal-mechanical fatigue results were compared with isothermal fatigue results reported in the literature for test temperatures of 850 and 1000 °C. Results revealed that isothermal fatigue exhibited a longer lifetime than thermal-mechanical fatigue at corresponding mechanical strain amplitude. In thermal-mechanical fatigue loading, cracks tended to initiate intergranularly and propagate transgranularly. Life prediction models were developed and compared to evaluate the possibility of predicting both thermal-mechanical fatigue and isothermal fatigue lifetimes. © 2008 Elsevier Inc. All rights reserved. en_US
dc.language.iso en en_US
dc.relation.ispartof Materials Characterization en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.subject Isothermal fatigue en_US
dc.subject Life prediction en_US
dc.subject Nickel-based superalloy en_US
dc.subject Thermal-mechanical fatigue en_US
dc.subject Fatigue of materials en_US
dc.subject Fatigue testing en_US
dc.subject Fiber reinforced materials en_US
dc.subject Forecasting en_US
dc.subject Implants (surgical) en_US
dc.subject Mathematical models en_US
dc.subject Metallic compounds en_US
dc.subject Metallurgy en_US
dc.subject Nickel en_US
dc.subject Nickel alloys en_US
dc.subject Nickel oxide en_US
dc.subject Powders en_US
dc.subject Titanium en_US
dc.subject Titanium alloys en_US
dc.subject Mech anical fatigue en_US
dc.subject Superalloys en_US
dc.subject Cracks en_US
dc.subject Dispersions en_US
dc.subject Fatigue en_US
dc.subject Forecasts en_US
dc.subject Mathematical Models en_US
dc.subject Nickel Compounds en_US
dc.subject Powder en_US
dc.subject Thermal Cycle en_US
dc.title Thermal-mechanical fatigue behaviour and life prediction of oxide dispersion strengthened nickel-based superalloy PM1000 en_US
dc.type Article en_US
dc.identifier.volume 59 en_US
dc.identifier.issue 11 en_US
dc.identifier.startpage 1600
dc.identifier.startpage 1600 en_US
dc.identifier.endpage 1606 en_US
dc.identifier.doi 10.1016/j.matchar.2008.02.004
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.identifier.scopus 2-s2.0-51649085080 en_US
dc.identifier.wos WOS:000260293500011 en_US

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