Alloying elements liquid addition to optimize secondary metallurgy

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dc.contributor.authorJimbert, P.
dc.contributor.authorIturrondobeitia, M.
dc.contributor.authorFernandez-Martinez, R.
dc.contributor.authorBarbero, J. I.
dc.contributor.authorSerna, M.
dc.contributor.authorEguizabal, D.
dc.contributor.authorOncala, J. L.
dc.contributor.authorArtola, A.
dc.contributor.authorIparraguirre, J. A.
dc.contributor.authorArteaga, A.
dc.contributor.institutionPROMETAL
dc.contributor.institutionSG
dc.contributor.institutionCIRMETAL
dc.date.accessioned2024-07-24T12:09:13Z
dc.date.available2024-07-24T12:09:13Z
dc.date.issued2018-01-01
dc.descriptionPublisher Copyright: © 2018, World Scientific and Engineering Academy and Society. All rights reserved.
dc.description.abstractDuring the last years, numerous secondary metallurgical technologies have been developed. The present study presents a new technology based on adding all the alloying elements in liquid state. In this new process, a molten bath of the appropriate composition is made with alloying elements and deoxidants (in an induction furnace). This molten alloy is introduced into the liquid steel at the beginning of secondary metallurgy. With this new process, in addition to improving the mixing between alloy elements and steel, its final objective is to improve the process of secondary metallurgy in order to: reduce the time of secondary metallurgy, reduce the temperature of the steel liquid, use cheaper alloying elements, improve steel cleaning by reducing the addition of inclusions by ferroalloys, thus improving steel quality, increasing the efficiency of ferroalloys and increasing productivity. All this would result in lower energy consumption due to the reduction of electric furnace times and temperatures.To achieve this goal, the first experiments with 100kg castings at laboratory scale have been performed, and the results are presented here below. Castings with solid and liquid addition of the alloying elements have been made and, the performance of the elements, the use of ferroalloys of different qualities and the final solidification microstructure have been analyzed for the 95Cr6 alloy, obtaining similar results in both processes. A more complex alloy (40NiCrMo4) has also been investigated to analyze the performance of other elements like Ni and Mo. The results obtained with both alloys indicate that the viability and the necessary requirements for a future adaptation to the industrial environment of this new technology are feasible. Tests on an industrial scale are necessary for a real estimation of the savings and environmental improvements that would lead to the industrialization of this new technology.en
dc.description.sponsorshipThis work was supported by the Basque Government under its ELKARTEK Research
dc.description.statusPeer reviewed
dc.format.extent7
dc.identifier.citationJimbert , P , Iturrondobeitia , M , Fernandez-Martinez , R , Barbero , J I , Serna , M , Eguizabal , D , Oncala , J L , Artola , A , Iparraguirre , J A & Arteaga , A 2018 , ' Alloying elements liquid addition to optimize secondary metallurgy ' , WSEAS Transactions on Environment and Development , vol. 14 , pp. 190-196 .
dc.identifier.issn1790-5079
dc.identifier.urihttps://hdl.handle.net/11556/3951
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85044316990&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofWSEAS Transactions on Environment and Development
dc.relation.projectIDEusko Jaurlaritza
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsAlloying elements
dc.subject.keywordsLiquid addition
dc.subject.keywordsSecondary metallurgy
dc.subject.keywordsEnvironmental Engineering
dc.subject.keywordsEnvironmental Chemistry
dc.subject.keywordsEcological Modeling
dc.subject.keywordsDevelopment
dc.subject.keywordsWaste Management and Disposal
dc.subject.keywordsManagement, Monitoring, Policy and Law
dc.subject.keywordsSDG 9 - Industry, Innovation, and Infrastructure
dc.titleAlloying elements liquid addition to optimize secondary metallurgyen
dc.typejournal article
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