Influence of the processing route on the properties of Ti(C,N)-Fe15Ni cermets

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Show simple item record Nicolás Morillas, María de Besharatloo, H. Wheeler, J. M. Dios Pérez, Miguel de Alvaredo Olmos, Paula Roa, J. J. Ferrari, B. Llanes, L. Gordo Odériz, Elena 2022-01-19T10:14:28Z 2022-02-01T00:00:05Z 2020-02
dc.identifier.bibliographicCitation de Nicolás, M., Besharatloo, H., Wheeler, J., de Dios, M., Alvaredo, P., Roa, J., Ferrari, B., Llanes, L. & Gordo, E. (2020). Influence of the processing route on the properties of Ti(C,N)-Fe15Ni cermets. International Journal of Refractory Metals and Hard Materials, 87, 105046.
dc.identifier.issn 0263-4368
dc.description.abstract This study aims to understand the influence of powder preparation and processing steps on the microstructure and properties of Ti(C,N)-Fe15Ni cermets with 70 and 80 vol% of ceramic phase. Two routes were used for powder preparation: (i) a colloidal approach, consisting of the preparation of stable aqueous suspensions of the powder particles and spray-drying to obtain easy-to-press granules, and (ii) conventional powder metallurgy route, consisting on wet ball milling of powders, with subsequent drying in rotary evaporator. The resultant powder mixtures were uniaxially pressed and sintered in high-vacuum at 1450 °C for 2 h. Sintered samples were characterized in terms of their density, porosity, microstructure (FESEM, image analysis), composition (EDX and XRD), small-scale hardness and sliding contact response by means of massive nanoindentation and nanoscratch testing. C content of the mixture powders was lower for conventional route, lost during milling. After sintering, all the materials, despite the processing route and composition, show C reduction, although that outflow is higher for the conventional powder metallurgy route, and more evident for the composition with higher binder content. As a result, COL samples exhibit a more homogeneous microstructural assemblage, higher small-scale hardness and mechanical integrity under sliding contact conditions. Compositions of materials must then be adjusted to adequate initial C addition with respect to the employed processing route, to account for the effects of the mixtures preparation stage.
dc.description.sponsorship The authors would like to acknowledge the financial support from the Ministerio de Economía y Competitividad, Spanish through the project MAT2015-70780-C4-P and grant BES-2016-077340, and the Regional Government of Madrid through the program ADITIMAT, Ref. S2018/NMT-4411. J. J. Roa acknowledges the Serra Hunter programme of the Generalitat de Catalunya.
dc.format.extent 9
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2019 Elsevier Ltd. All rights reserved.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Ball milling
dc.subject.other Cermets
dc.subject.other Colloidal
dc.subject.other Massive nanoindentation
dc.subject.other Nanoscratch
dc.subject.other Processing route
dc.title Influence of the processing route on the properties of Ti(C,N)-Fe15Ni cermets
dc.type article
dc.subject.eciencia Ingeniería Industrial
dc.subject.eciencia Materiales
dc.subject.eciencia Química
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. BES-2016-077340
dc.relation.projectID Comunidad de Madrid. S2018/NMT-4411
dc.relation.projectID Gobierno de España. MAT2015-70780-C4-P
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 105046
dc.identifier.publicationlastpage 9
dc.identifier.publicationtitle International Journal of Refractory Metals and Hard Materials
dc.identifier.publicationvolume 87
dc.identifier.uxxi AR/0000025561
dc.contributor.funder Comunidad de Madrid
dc.contributor.funder Ministerio de Economía y Competitividad (España)
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