Formability improvement in Ti-6Al-4 V sheet at room temperature by pulsating hydraulic bulging: experimental and numerical investigations

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dc.contributor.authorOzturk, Osman
dc.contributor.authorKorkmaz, Habip G.
dc.contributor.authorAtas, Gurkan
dc.contributor.authorAydin, Mevlut
dc.contributor.authorTurkoz, Mevlut
dc.contributor.authorToros, Serkan
dc.contributor.authorDilmec, Murat
dc.date.accessioned2024-02-23T13:43:31Z
dc.date.available2024-02-23T13:43:31Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractTi-6Al-4 V sheets possess limited formability at room temperature due to low ductility with almost no strain hardening. Pressure pulsation during hydroforming may bring significant improvement as an alternative to the widespread solution hot forming. However, much uncertainty exists on the deformation mechanism and effects of pulsating on difficult-to-form materials. In this study, the effect of pulsating pressure on the hydraulic bulge test was investigated to increase the limited formability of the Ti-6Al-4 V sheet at room temperature. Experimental results of thickness distribution and bulge height obtained from the bulge tests were compared with the finite element simulation results. The results show that the tests with pulsation allow a higher thickness reduction with a slightly more homogenous thickness distribution. Pulsation causes a delay in the material's failure resulting in a 15.4% increase in the dome height with a 17% increased burst pressure compared to monotonic loading. The underlying microstructural phenomena of increased formability were elaborated using dislocation estimations, fracture surface analysis, and hardness. Test results suggest that pulsation improves formability by 47% in terms of maximum elongation due to stress relaxation.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [219M489]en_US
dc.description.sponsorshipThis research has been financially supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under Grant Number 219M489. This work has also been extracted from OOE's dissertation.en_US
dc.identifier.doi10.1007/s00170-022-10693-3
dc.identifier.endpage2918en_US
dc.identifier.issn0268-3768
dc.identifier.issn1433-3015
dc.identifier.issue7.Ağuen_US
dc.identifier.scopus2-s2.0-85144377080en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage2903en_US
dc.identifier.urihttps://doi.org/10.1007/s00170-022-10693-3
dc.identifier.urihttps://hdl.handle.net/20.500.12452/10840
dc.identifier.volume124en_US
dc.identifier.wosWOS:000901717600005en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer London Ltden_US
dc.relation.ispartofInternational Journal Of Advanced Manufacturing Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSheet Metal Formingen_US
dc.subjectPulsating Hydroformingen_US
dc.subjectFormabilityen_US
dc.subjectTi-6al-4 Ven_US
dc.titleFormability improvement in Ti-6Al-4 V sheet at room temperature by pulsating hydraulic bulging: experimental and numerical investigationsen_US
dc.typeArticleen_US

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