Effect of Material and Process Atmosphere in the Preparation of Al-Ti-B Grain Refiner by SHS

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dc.contributor.authorVicario, Iban
dc.contributor.authorPoulon-Quintin, Angeline
dc.contributor.authorLagos, M.A.
dc.contributor.authorSilvain, JF
dc.contributor.institutionPROMETAL
dc.contributor.institutionEXTREMAT
dc.date.issued2015-09
dc.descriptionPublisher Copyright: © 2015 by the authors; licensee MDPI, Basel, Switzerland.
dc.description.abstractAl-Ti-B master alloys are widely used in the aluminum industry as grain refiners for the control of the microstructure of the aluminum alloys. The SHS (self-propagating high-temperature synthesis) is an ex situ method that uses exothermic reactions to sustain the chemical reaction in a combustion wave. The advantages of SHS are the low energy requirement, simplicity and product purity. However, the raw material used has to be very pure, with a very small size leading to the necessity of a reactor with a protective gas to produce the reaction. The purpose of this investigation is to fabricate SHS master alloys with commercial standard raw materials, with lower purity and higher grain size without a reactor or protective gas in order to (1) decrease the price and (2) improve the productivity of master alloy manufacturing. The possibility of using cheap borated salts instead of expensive pure boron has been studied. Different compositions of aluminum master alloy have been developed. Bigger TiB2 grain size has been obtained when using bigger commercial raw materials. Larger titanium powder can produce an aluminum master alloy with a maximum of 30% of aluminum without reactor. In comparison, SHS reaction is much more difficult when using finer titanium powder.en
dc.description.statusPeer reviewed
dc.format.extent10
dc.format.extent1290012
dc.identifier.citationVicario , I , Poulon-Quintin , A , Lagos , M A & Silvain , JF 2015 , ' Effect of Material and Process Atmosphere in the Preparation of Al-Ti-B Grain Refiner by SHS ' , unknown , vol. unknown , no. 3 , pp. 1387-1396 . https://doi.org/10.3390/met5031387
dc.identifier.doi10.3390/met5031387
dc.identifier.otherresearchoutputwizard: 11556/248
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84940531901&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofunknown
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject.keywordsgrain refiner
dc.subject.keywordsself-propagating high-temperature synthesis
dc.subject.keywordsaluminum
dc.subject.keywordsflux
dc.subject.keywordsgrain refiner
dc.subject.keywordsself-propagating high-temperature synthesis
dc.subject.keywordsaluminum
dc.subject.keywordsflux
dc.subject.keywordsGeneral Materials Science
dc.subject.keywordsFunding Info
dc.subject.keywordsBasque gov: IT-2008/00348, IG-2010/00102, Spanish gov: IAP-560300-2008-6
dc.subject.keywordsBasque gov: IT-2008/00348, IG-2010/00102, Spanish gov: IAP-560300-2008-6
dc.titleEffect of Material and Process Atmosphere in the Preparation of Al-Ti-B Grain Refiner by SHSen
dc.typejournal article
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