Simple record

dc.contributor.authorBernal, Daniel
dc.contributor.otherNiklas, Andrea
dc.contributor.otherSantos, Fernando
dc.contributor.otherGonzalez-Martinez, Rodolfo
dc.contributor.otherCobos, Alberto
dc.contributor.otherVázquez, Lexuri Lexuri
dc.contributor.otherÁlvarez, Pedro
dc.date.accessioned2023-06-12T12:51:35Z
dc.date.available2023-06-12T12:51:35Z
dc.date.issued2023
dc.identifier.issn1543-1940en
dc.identifier.otherhttps://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=172730en
dc.identifier.urihttps://hdl.handle.net/20.500.11984/6094
dc.description.abstractHerein, the effects of microstructure on high-temperature properties (hot ductility and stress rupture life) were investigated in alloy 718 investment castings manufactured with different Si contents (0.051, 0.11, and 0.17 wt pct) and different cooling rates (0.52 °C/s and 1.65 °C/s). For the casting with a low cooling rate, an additional solution treatment step was added to the standard pre-weld heat treatment. Even small amounts of residual Laves phase (0.14 to 0.35 wt pct) adversely affected both the hot ductility and stress rupture properties. Hot ductility tests indicated that the presence of Laves phase led to an earlier decrease in hot ductility in on-heating tests and retarded ductility recovery in on-cooling tests. Both effects are usually associated with poorer weldability and greater hot cracking susceptibility. Ductility recovery was also affected by grain size and aspect ratio: columnar and smaller grain sizes showed better ductility recovery behavior. Stress rupture tests indicated that stress rupture life and elongation decreased with increasing Si content, due to the presence of a semicontinuous network of Laves phase at grain boundaries instead of intergranular δ phases. This effect was much more pronounced in stress rupture than in hot ductility tests. The presence of residual Laves phase was associated with higher Si content and lower cooling rates. The additional solution treatment step of 2 hours at 1052 °C did not eliminate the Laves phase completely.en
dc.description.sponsorshipGobierno Vascoes
dc.description.sponsorshipGobierno Vascoes
dc.description.sponsorshipComisión Europeaes
dc.language.isoengen
dc.publisherSpringeren
dc.rights© The Minerals, Metals & Materials Society and ASM International 2023en
dc.titleEffects of Different Si Content and Thermal Stories on the Secondary Phase Formation, Hot Ductility, and Stress Rupture Properties of Alloy 718 Investment Castingsen
dcterms.accessRightshttp://purl.org/coar/access_right/c_f1cfen
dcterms.sourceMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Scienceen
local.contributor.groupProcesos avanzados de conformación de materialeses
local.description.peerreviewedtrueen
local.description.publicationfirstpage2670en
local.description.publicationlastpage2688en
local.identifier.doihttps://doi.org/10.1007/s11661-023-07046-4en
local.relation.projectIDinfo:eu-repo/grantAgreement/GV/Elkartek 2020/KK-2020-00047/CAPV/Desarrollo de materiales cerámicos y metálicos de altas prestaciones para fabricación avanzada/CEMAPen
local.relation.projectIDinfo:eu-repo/grantAgreement/GV/Elkartek 2022/KK-2022-00082/CAPV/Diseño avanzado y desarrollo materiales para la fabricación de nuevos productos para energía y movilidad más sostenibles empleando herramientas de modelización y análisis de datos/MINERVAen
local.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/755561/EU/Development of investment casting process of nickel superalloys with enhanced weldability/HiperTURBen
local.embargo.enddate2024-07-31
local.contributor.otherinstitutionhttps://ror.org/009mwwv16es
local.contributor.otherinstitutionhttps://ror.org/043m8qc33es
local.contributor.otherinstitutionhttps://ror.org/04z0p3077es
local.source.detailsVol. 54. Pp. 2670–2688, 2023en
oaire.file$DSPACE\assetstoreen
oaire.resourceTypehttp://purl.org/coar/resource_type/c_6501en
oaire.versionhttp://purl.org/coar/version/c_ab4af688f83e57aaen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Simple record