A Coupled Magnetohydrodynamics (MHD) and Thermal Stress-Strain Model to Explore the Impact of Gas Cooling on Ingot Solidification Shrinkage in Vacuum Arc Remelting (VAR) Process

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dc.contributor.authorBoháček, Jancs
dc.contributor.authorKarimi-Sibaki, Ebrahimcs
dc.contributor.authorVakhrushev, Alexandercs
dc.contributor.authorMráz, Kryštofcs
dc.contributor.authorHvožďa, Jiřícs
dc.contributor.authorWu, Menghuaics
dc.contributor.authorKharicha, Abdellahcs
dc.coverage.issue6cs
dc.coverage.volume55cs
dc.date.accessioned2025-03-28T07:43:04Z
dc.date.available2025-03-28T07:43:04Z
dc.date.issued2024-09-04cs
dc.description.abstractAn advanced 2D axisymmetric magnetohydrodynamics model, including calculations for electromagnetic, thermal, and flow fields, fully coupled with a thermal stress-strain model, allowing the computation of solid mechanical parameters like stress, strain, and deformation within the ingot of the vacuum arc remelting process is presented. This process encounters challenges due to solidification shrinkage, which causes losing contact between the ingot and the mold, reducing the cooling efficiency of the system, resulting in a deeper melt pool and decreasing ingot quality. Herein, the width of the air gap along the ingot, the precise position of contact between the ingot and mold, and the profile of the melt pool, affected by gas cooling, are calculated. The global pattern of transport phenomena, such as (electro-vortex) flow and electromagnetic fields in the bulk of the ingot, is insensitive to helium gas cooling through the shrinkage gap. However, including gas cooling significantly improves heat removal through the mold, which consequently reduces the pool depth of the Alloy 718 ingot, leading to an improvement in the quality of the ingot.en
dc.formattextcs
dc.format.extent4408-4417cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMETALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE. 2024, vol. 55, issue 6, p. 4408-4417.en
dc.identifier.doi10.1007/s11663-024-03254-4cs
dc.identifier.issn1073-5615cs
dc.identifier.orcid0000-0003-3319-4254cs
dc.identifier.orcid0000-0002-4521-4438cs
dc.identifier.orcid0000-0002-4444-4485cs
dc.identifier.other189481cs
dc.identifier.researcheridC-2078-2018cs
dc.identifier.researcheridAAZ-5704-2021cs
dc.identifier.researcheridAAQ-1466-2021cs
dc.identifier.scopus55213548700cs
dc.identifier.scopus57226704481cs
dc.identifier.scopus57222749606cs
dc.identifier.urihttps://hdl.handle.net/11012/250690
dc.language.isoencs
dc.publisherSpringer Naturecs
dc.relation.ispartofMETALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCEcs
dc.relation.urihttps://link.springer.com/article/10.1007/s11663-024-03254-4cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1073-5615/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectvacuum arc remeltingen
dc.subjectmagnetohydrodynamicsen
dc.subjectLorentz forceen
dc.subjectthermal stress-strainen
dc.subjectcouplingen
dc.subjectgas coolingen
dc.subjectshrinkageen
dc.subjectgapen
dc.titleA Coupled Magnetohydrodynamics (MHD) and Thermal Stress-Strain Model to Explore the Impact of Gas Cooling on Ingot Solidification Shrinkage in Vacuum Arc Remelting (VAR) Processen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-189481en
sync.item.dbtypeVAVen
sync.item.insts2025.03.28 08:43:04en
sync.item.modts2025.03.28 08:33:10en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Laboratoř přenosu tepla a prouděnícs
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