dc.creator | González, Luis Manuel | es |
dc.creator | Chicardi Augusto, Ernesto | es |
dc.creator | Gotor Martínez, Francisco José | es |
dc.creator | Bermejo, Raúl | es |
dc.creator | Llanes, Luis | es |
dc.creator | Torres Hernández, Yadir | es |
dc.date.accessioned | 2020-07-28T18:50:31Z | |
dc.date.available | 2020-07-28T18:50:31Z | |
dc.date.issued | 2020-02 | |
dc.identifier.citation | González, L.M., Chicardi Augusto, E., Gotor Martínez, F.J., Bermejo, R., Llanes, L. y Torres Hernández, Y. (2020). Influence of the Test Configuration and Temperature on the Mechanical Behaviour of WC-Co. Metals, 10 (3), Article number 322. | |
dc.identifier.issn | EISSN 2075-4701 | es |
dc.identifier.uri | https://hdl.handle.net/11441/99922 | |
dc.description.abstract | In this work, the effect of the test configuration and temperature on the mechanical behaviour
of cemented carbides (WC-Co) with different carbide grain sizes (dWC) and cobalt volume fractions
(VCo), implying different binder mean free paths ( Co), was studied. The mechanical strength was
measured at 600º C with bar-shaped specimens subjected to uniaxial four-point bending (4PB) tests
and with disc specimens subjected to biaxial ball-on-three-balls (B3B) tests. The results were analysed
within the frame of theWeibull theory and compared with strength measurements performed at room
temperature under the same loading conditions. A mechanical degradation greater than 30% was
observed when the samples were tested at 600ºC due to oxidation phenomena, but higherWeibull
moduli were obtained as a result of narrower defect size distributions. A fractographic analysis was
conducted with broken specimens from each test configuration. The number of fragments (Nf) and the
macroscopic fracture surface were related to the flexural strength and fracture toughness of WC-Co.
For a given number of fragments, higher mechanical strength values were always obtained for WC-Co
grades with higher KIc. The observed differences were discussed based on a linear elastic fracture
mechanics (LEFM) model, taking into account the effect of the temperature and microstructure of the
cemented carbides on the mechanical strength. | es |
dc.description.sponsorship | Junta de Andalucía P12-TEP-2622 | es |
dc.format | application/pdf | es |
dc.format.extent | 12 p. | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | Metals, 10 (3), Article number 322. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Cemented carbides | es |
dc.subject | Temperature | es |
dc.subject | Mechanical strength | es |
dc.subject | Weibull | es |
dc.subject | Biaxial test | es |
dc.title | Influence of the Test Configuration and Temperature on the Mechanical Behaviour of WC-Co | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte | es |
dc.relation.projectID | P12-TEP-2622. | es |
dc.relation.publisherversion | https://doi.org/10.3390/met10030322 | es |
dc.identifier.doi | 10.3390/met10030322 | es |
dc.journaltitle | Metals | es |
dc.publication.volumen | 10 | es |
dc.publication.issue | 3 | es |
dc.publication.initialPage | Article number 322 | es |
dc.contributor.funder | Junta de Andalucía | es |