Study and suppression of the microstructural anisotropy generated during the consolidation of a carbonyl iron powder by field-assisted hot pressing

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dc.contributor.author García-Junceda, Andrea
dc.contributor.author Acebo, Laura
dc.contributor.author Torralba Castelló, José Manuel
dc.date.accessioned 2015-05-13T10:20:11Z
dc.date.issued 2015-04
dc.identifier.bibliographicCitation Metallurgical and Materials Transactions A (2015).
dc.identifier.issn 1073-5623 (print)
dc.identifier.issn 1543-1940 (online)
dc.identifier.uri http://hdl.handle.net/10016/20706
dc.description Published Online
dc.description.abstract A spherical carbonyl iron powder was consolidated by the field-assisted hot pressing technique using graphite tools at two different temperatures, both above the austenitizing temperature. The microstructures obtained exhibited a compositional gradient in carbon along the consolidated material. Thus, the outer rim of the cylindrical samples was composed of cementite and pearlite that gradually turned to pearlite, leading to a fully ferritic microstructure at the core of the sample. The increase in the temperature has led to a higher introduction of carbon within the sample. The interposition of a thin tungsten foil between the graphite die/punches and the powders has significantly reduced the diffusion of the carbon through the iron matrix and has suppressed the microstructural anisotropy.
dc.format.extent 7
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Springer
dc.rights © 2015 The Minerals, Metals & Materials Society and ASM International
dc.subject.other Carbon
dc.subject.other Graphite foils
dc.subject.other Iron-based alloy
dc.subject.other Tungsten foils
dc.subject.other Hot pressing
dc.subject.other Carbonyl iron
dc.subject.other Anisotropy
dc.title Study and suppression of the microstructural anisotropy generated during the consolidation of a carbonyl iron powder by field-assisted hot pressing
dc.type article
dc.description.status Publicado
dc.relation.publisherversion http://dx.doi.org/10.1007/s11661-015-2919-z
dc.subject.eciencia Materiales
dc.identifier.doi 10.1007/s11661-015-2919-z
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationlastpage 7
dc.identifier.publicationtitle Metallurgical and materials transactions. A, Physical metallurgy and materials science
dc.identifier.uxxi AR/0000016817
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