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Effect of nickel on the mechanical properties of spray-formed Al-15Si-2Cu alloy at elevated temperatures

2025-09Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências Físicas
datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
dc.contributor.authorGoudar, Dayanand M.
dc.contributor.authorAlavandi, Mehabubsubahani R.
dc.contributor.authorBhat, Subraya Krishna
dc.contributor.authorBommenahalli, Raghukumar
dc.contributor.authorKurahatti, Rajashekar V.
dc.contributor.authorPinto, Deesy G.
dc.contributor.authorRaju, K.
dc.contributor.authorPinto, Deesy
dc.date.accessioned2025-09-11T14:05:10Z
dc.date.available2025-09-11T14:05:10Z
dc.date.issued2025-09
dc.description.abstractat different temperatures was examined and evaluated with that of the as-cast (AC) alloy. The microstructure of SF alloys revealed uniformly distributed spherical shaped primary silicon and eutectic silicon phases along with fine Ni and Cu intermetallic particles dispersed throughout the equiaxed Al matrix. The microstructure of AC alloys consisted of coarse primary Si, flake-type eutectic phase, Cu-rich intermetallics with a complex branched morphology and a network of short strips. The mechanical properties of the alloys were assessed at temperatures of 30◦C, 100◦C, 200◦C and 300◦C. The SF alloys exhibited higher hardness than AC alloys at all temperatures with a maximum increase of 74 % at 30◦C. The hardness of alloys showed a decreasing trend with increasing temperature. The mechanical strength of SF alloys was higher than that of the AC alloys across the entire temperature range from 30◦C to 300◦C with a decrease in ultimate tensile strength (UTS) by 4–6 % at 250◦C. The SF alloys demonstrated a significant increase in UTS (25 % at 30◦C and 40 % at 300◦C) compared to the AC alloys. The Al-15Si-2Cu-2Ni alloy showed highest increase (14.3–18.6 %) and Al-15Si-2Cu-6Ni alloy showed the lowest increase (10.5 % to 14 %) in percent elongation between 30◦C and 300◦C.eng
dc.identifier.doi10.1016/j.jallcom.2025.183431
dc.identifier.issn0925-8388
dc.identifier.urihttp://hdl.handle.net/10400.13/7376
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.ispartofJournal of Alloys and Compounds
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAs-cast alloy
dc.subjectSpray formed alloy
dc.subjectMicrostructure
dc.subjectHardness
dc.subjectTensile strength
dc.subject.
dc.subjectFaculdade de Ciências Exatas e da Engenharia
dc.titleEffect of nickel on the mechanical properties of spray-formed Al-15Si-2Cu alloy at elevated temperatureseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleJournal of Alloys and Compounds
oaire.citation.volume1040
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePinto
person.givenNameDeesy
person.identifier.ciencia-idF014-D3E5-5C2E
person.identifier.orcid0000-0003-2218-1343
person.identifier.ridL-3270-2013
person.identifier.scopus-author-id35362905700
relation.isAuthorOfPublication84394437-adbf-4747-a218-4434e421f905
relation.isAuthorOfPublication.latestForDiscovery84394437-adbf-4747-a218-4434e421f905

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