Local High Pressure Torsion: A Process for Creating Targeted Heterogeneities in Metallic Materials

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dc.contributor.authorBeygelzimer, E.en
dc.contributor.authorDavydenko, O.en
dc.contributor.authorBeygelzimer, Y.en
dc.contributor.authorTereshchenko, Y.en
dc.contributor.authorBondarchuk, V.en
dc.contributor.authorShyvaniuk, V.en
dc.contributor.authorFataiev, R.en
dc.contributor.authorShapiro, I.en
dc.contributor.authorBalakin, Valerii F.en
dc.contributor.authorBiba, N.en
dc.contributor.authorOrlov, D.en
dc.date.accessioned2025-02-18T12:32:35Z
dc.date.available2025-02-18T12:32:35Z
dc.date.issued2025
dc.descriptionV. Balakin: ORCID 0000-0003-0876-7516; D. Orlov: ORCID 0000-0002-1115-4609en
dc.description.abstractENG: In the light of recent developments in the design of structural materials, micro-architected heterogenous-structure metals are considered among most structurally efficient. In this work, a new technique for Local High Pressure Torsion (L-HPT) enabling the creation of heterogeneous structures through localised deformation processing in sheet metals by impeding a rotating punch is proposed. Using AA5083 aluminium alloy as an example, we show experimentally that the rotation of the punch sets adjacent material layers in motion. This results in more than two-fold increase in material hardness over initial level in the workpiece bulk with rather sharp gradients in hardness level transition. The maximum hardness is observed at the peripheral edge of a punch tip. Finite-element modelling of the L-HPT process confirmed that the rotational flow of workpiece material leads to the accumulation of shear strain. The level of accumulated strain increases with an increase in friction at the contact surface. Further analysis based on dimensionality theory revealed that for such an L-HPT configuration the level of equivalent strain is directly proportional to the ratio of rotation-to-translation speeds at the punch.en
dc.description.sponsorshipOMD-Engineering LLC, Dnipro; Donetsk Institute for Physics and Engineering named after O. O. Galkin, National Academy of Sciences of Ukraine, Kyiv; G. V. Kurdyumov Institute for Metal Physics, National Academy of Sciences of Ukraine, Kyiv; MICAS Simulations Ltd, Kyiv; Lund University, Lunden
dc.identifier.citationBeygelzimer E., Davydenko O., Beygelzimer Y., Tereshchenko Y., Bondarchuk V., Shyvaniuk V., Fataiev R., Shapiro I., Balakin V., Biba N., Orlov D. Local High Pressure Torsion: A Process for Creating Targeted Heterogeneities in Metallic Materials. International Journal of Material Forming. 2025. Vol. 18, Iss. 1. Art. 16. DOI: https://doi.org/10.1007/s12289-025-01879-7.en
dc.identifier.doihttps://doi.org/10.1007/s12289-025-01879-7en
dc.identifier.issn1960-6206 (Print)
dc.identifier.issn1960-6214 (Online)
dc.identifier.urihttps://link.springer.com/article/10.1007/s12289-025-01879-7en
dc.identifier.urihttps://crust.ust.edu.ua/handle/123456789/19631en
dc.language.isoen
dc.publisherSpringer Natureen
dc.subjectLocal High Pressure Torsion (L-HPT)en
dc.subjectdeformation processingen
dc.subjectarchitected microstructuresen
dc.subjectgradient structureen
dc.subjectfinite element modellingen
dc.subjectfriction factoren
dc.subjectКТТАМПuk_UA
dc.subject.classificationTECHNOLOGY::Materials scienceen
dc.titleLocal High Pressure Torsion: A Process for Creating Targeted Heterogeneities in Metallic Materialsen
dc.typeArticleen
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