Mostra el registre d'ítem simple

dc.contributor.authorTarrago, Jose Maria
dc.contributor.authorCoureaux Mustelier, David
dc.contributor.authorTorres, Yadir
dc.contributor.authorWu, F
dc.contributor.authorAl-Dawery, Ihsan
dc.contributor.authorLlanes Pitarch, Luis Miguel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2017-02-23T08:02:53Z
dc.date.available2018-02-01T01:30:37Z
dc.date.issued2016
dc.identifier.citationTarrago, J.M., Coureaux, D., Torres, Y., Wu, F., Al-Dawery, I., Llanes, L. Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides. "International journal of refractory metals and hard materials", 2016, vol. 55, p. 80-86.
dc.identifier.issn0263-4368
dc.identifier.urihttp://hdl.handle.net/2117/101425
dc.description.abstractLinear intercept on scanning electron microscopy micrographs is the most commonly used measurement method to determine carbide grain size and contiguity in WC–Co cemented carbides (hardmetals). However, it involves manual time-consuming measurements and is critically dependent on the quality of the micrographs as well as on the identification and definition of grain boundaries. In this study a two-stage methodology for microstructural characterization of hardmetals is presented. First, a digital semi-automatic image analysis procedure for grain size determination of the carbide phase is presented. It involves an experimental assessment of grain size on processed images corresponding to a series of WC–Co and WC–Ni cemented carbide grades with different microstructural characteristics. Obtained results are then compared to the values obtained by means of the linear intercept technique. A good correlation between the mean grain sizes determined following both measurement techniques was attained. Based on experimental findings, a series of empirical relations were found to correlate grain size distributions obtained following both methods. Second, an empirical relation for estimating carbide contiguity in WC–Co cemented carbides is proposed. This relation considers simultaneously the influence of the binder content and the experimentally determined mean grain size on contiguity. The proposed equation for contiguity estimation is based on extensive data collection from open literature. An excellent agreement was attained between contiguity values estimated from such equation and those obtained using the linear intercept technique. This validates the two-stage procedure as an effective time-saving methodology for microstructural characterization of WC–Co cemented carbides.
dc.format.extent7 p.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshCarbides
dc.subject.lcshNanostructured materials
dc.subject.otherCemented carbides
dc.subject.otherCarbide grain size
dc.subject.otherCarbide contiguity
dc.subject.otherMicrostructure
dc.subject.otherImage analysis
dc.titleImplementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
dc.typeArticle
dc.subject.lemacMaterials nanoestructurats
dc.subject.lemacCarburs -- Propietats mecàniques
dc.contributor.groupUniversitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Fiabilitat i Micromecànica dels Materials
dc.identifier.doi10.1016/j.ijrmhm.2015.10.006
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0263436815301670
dc.rights.accessOpen Access
local.identifier.drac19723101
dc.description.versionPostprint (author's final draft)
local.citation.authorTarrago, J.M.; Coureaux, D.; Torres, Y.; Wu, F.; Al-Dawery, I.; Llanes, L.
local.citation.publicationNameInternational journal of refractory metals and hard materials
local.citation.volume55
local.citation.startingPage80
local.citation.endingPage86


Fitxers d'aquest items

Thumbnail
Thumbnail

Aquest ítem apareix a les col·leccions següents

Mostra el registre d'ítem simple