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dc.contributor.authorTarragó, Jose Maria
dc.contributor.authorDorvlo, Selassie
dc.contributor.authorEsteve, Joan
dc.contributor.authorLlanes Pitarch, Luis Miguel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.identifier.citationTarragó, J.M., Dorvlo, S., Esteve, J., Llanes, L. Influence of the microstructure on the thermal shock behavior of cemented carbides. "Ceramics international", 15 Agost 2016, vol. 42, núm. 11, p. 12701-12708.
dc.description.abstractThe influence of single and repetitive sudden changes of temperature on the mechanical integrity of cemented carbides was investigated as a function of their microstructure. Thermal shock resistance was assessed by testing the residual flexural strength of hardmetal beams after being subjected to thermal shock by water quenching. Results indicate that hard cemented carbides tend to exhibit a superior resistance to the nucleation of thermal shock damage but a lower resistance to the propagation of this damage mechanism than tough grades, and vice versa. These trends are in agreement with those expected from the evaluation of the thermal shock Hasselman’s parameters. The evidenced strength loss after thermal shock may be related to the subcritical growth of intrinsic flaws driven by localized microcracking surrounding them. Results also point out on Ni-base hardmetals to exhibit a slightly higher resistance to abrupt changes of temperature than Co-base ones.
dc.format.extent8 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshNanostructured materials
dc.subject.lcshCarbides--Thermal properties
dc.subject.lcshCeramic materials--Fracture
dc.subject.otherCemented carbides
dc.subject.otherThermal shock
dc.subject.otherHasselman parameters
dc.subject.otherStrength degradation
dc.titleInfluence of the microstructure on the thermal shock behavior of cemented carbides
dc.subject.lemacMaterials nanoestructurats
dc.subject.lemacCarburs -- Propietats mecàniques
dc.subject.lemacCarburs -- Fissuració
dc.subject.lemacMaterials ceràmics -- Fractura
dc.contributor.groupUniversitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorTarragó, J.M.; Dorvlo, S.; Esteve, J.; Llanes, L.
local.citation.publicationNameCeramics international

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