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The effect of temperature on the high-strain-rate response of Co-Al-W- base alloys: Experiments and modeling

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carlosiii.embargo.liftdate2024-03-15
carlosiii.embargo.terms2024-03-15
dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnología de Polvoses
dc.contributor.authorCasas Ferreras, Rafael
dc.contributor.authorSancho, Rafael
dc.contributor.authorCampos Gómez, Mónica
dc.contributor.authorGálvez, Francisco
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.date.accessioned2022-09-21T09:44:36Z
dc.date.issued2022-03-15
dc.description.abstractTwo novels Powder Metallurgy (PM) cobalt-based superalloys with a γ/γ’ dual-phase microstructure have been subjected to dynamic uniaxial compression tests at temperatures from 25 °C to 850 °C, and a high strain rate of 2500 s−1, to investigate the effect of temperature on their high-strain-rate response. Compression tests have been performed using a Split Hopkinson Pressure Bar (SHPB), focusing on the temperature-dependent anomalies of the flow stress at high temperatures for both alloys. The analysis of the experimental results indicates an important strain-rate sensitivity and thermal softening effect with a noticeable positive stress peak at high temperatures. Finally, a Johnson-Cook-type constitutive model is developed to describe the flow stress as a function of the temperature, including the anomalous positive peak temperature. The modified JC model presents a good correlation to predict the behavior of both Co-based superalloys over wide ranges of temperatures through simulating the experimental camping with Abaqus. This model offers a potential instrument to simulate and optimize high impact events applications.en
dc.description.sponsorshipThe research was supported by funding from the Madrid region under the programme S2018/NMT-4381 with the MAT 4.0-CM Project, Spain. Funding from PID2019-109334RB-C32 awarded by the Spanish Ministry of Science, Spain, is also acknowledged.en
dc.format.extent9
dc.identifier.bibliographicCitationCasas, R., Sancho, R., Campos, M., & Gálvez, F. (2022). The effect of temperature on the high-strain-rate response of Co-Al-W- base alloys: Experiments and modeling. In Journal of Alloys and Compounds, 897, 163154-163163en
dc.identifier.doihttps://doi.org/10.1016/j.jallcom.2021.163154
dc.identifier.issn0925-8388
dc.identifier.publicationfirstpage163154
dc.identifier.publicationlastpage163163
dc.identifier.publicationtitleJOURNAL OF ALLOYS AND COMPOUNDSen
dc.identifier.publicationvolume897
dc.identifier.urihttps://hdl.handle.net/10016/35754
dc.identifier.uxxiAR/0000029800
dc.language.isoengen
dc.publisherELSEVIER BVen
dc.relation.projectIDComunidad de Madrid. S2018/NMT-4381es
dc.relation.projectIDGobierno de España. PID2019-109334RB-C32es
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0925838821045643?via%3Dihub#!en
dc.rights© 2021 Published by Elsevier B.V.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsembargoed accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherCobalt-base superalloysen
dc.subject.otherPowder metallurgyen
dc.subject.otherHopkinson-baren
dc.subject.otherHigh strain rateen
dc.subject.otherTemperatureen
dc.subject.otherConstitutive modelen
dc.titleThe effect of temperature on the high-strain-rate response of Co-Al-W- base alloys: Experiments and modelingen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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