Optimisation of mechanical milling process for production of AA 7075/(SiC or TiB₂) composite powders

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dc.contributor.author Jabbari Taleghani, M. A.
dc.contributor.author Ruiz Navas, Elisa María
dc.contributor.author Salehi, M.
dc.contributor.author Torralba Castello, José Manuel
dc.date.accessioned 2015-04-28T08:42:27Z
dc.date.available 2015-04-28T08:42:27Z
dc.date.issued 2012-09
dc.identifier.bibliographicCitation Powder Metallurgy (2012). 55(4), 280-286.
dc.identifier.issn 0032-5899 (print)
dc.identifier.issn 1743-2901 (Online)
dc.identifier.uri http://hdl.handle.net/10016/20536
dc.description.abstract The present work concerns the processing of composite powders based on 7075 aluminium alloy by mechanical milling. A premixed powder (Alumix 431D, Ecka Granules, Germany) was used as the matrix material, and two different ceramic reinforcements (SiC and TiB₂) were chosen as reinforcements. The main objective was to evaluate the effect of the content and addition method of the process control agent as well as the content and type of reinforcement on the microstructural and morphological evolutions of the powder particles during milling process and the as milled properties of the processed materials. Results showed that regardless of the starting composition, alloying took place through three stages, in which deformation, cold welding and fracturing of powder particles were the main mechanisms involved respectively. The mechanically milled composite powders showed a fine and homogenous distribution of reinforcement particles. A higher content of reinforcement resulted in a lower crystalline size for the milled powders (∼18 nm for composite powders containing 15 vol.-% ceramic particles).
dc.description.sponsorship The authors would like to thank the Comunidad de Madrid for their financial support of this work through the ESTRUMAT grant no. S2009/MAT-1585.
dc.format.extent 7
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Maney Publishing
dc.relation.ispartof http://hdl.handle.net/10016/20871
dc.rights © 2012. Institute of Materials, Minerals and Mining. Published by Maney on behalf of the Institute
dc.subject.other Aluminium matrix composites
dc.subject.other Mechanical milling
dc.subject.other Process control agent
dc.subject.other Reinforcement
dc.subject.other Microstructural and morphological evolution
dc.subject.other Powder extraction efficiency
dc.title Optimisation of mechanical milling process for production of AA 7075/(SiC or TiB₂) composite powders
dc.type article
dc.description.status Publicado
dc.relation.publisherversion http://dx.doi.org/10.1179/1743290112Y.0000000021
dc.subject.eciencia Materiales
dc.identifier.doi 10.1179/1743290112Y.0000000021
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2009/MAT-1585/ESTRUMAT
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 280
dc.identifier.publicationissue 4
dc.identifier.publicationlastpage 286
dc.identifier.publicationtitle Powder Metallurgy
dc.identifier.publicationvolume 55
dc.identifier.uxxi AR/0000011178
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