Microstructural Transformation and Enhanced Strength of Wire-Feed Electron-Beam Additive Manufactured Ti–6Al–4V Alloy Induced by High-Pressure Torsion
| Parent link: | Advanced Engineering Materials.— .— Washington: John Wiley and Sons Ltd. Vol. 26, iss. 4.— 2024.— Article number 2300814, 9 p. |
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| Other Authors: | , , , , |
| Summary: | Title screen For the first time, the present study demonstrates the influence of high-pressure torsion (HPT) on microstructural refinement and mechanical strength of Ti–6Al–4V titanium alloy produced by wire-feed electron-beam additive manufacturing. This technology has attracted an increasing interest presently from manufacturers of products with complex shapes and it allows for producing a titanium alloy with a unique microstructure that consists of martensitic α′ phase, separated by thin interlayers of residual β phase. Further processing of the alloy by HPT results in the formation of an ultrafine-grained (UFG) structure with an average grain size of about 25 ± 10 nm, significantly increasing its microhardness up to 448 ± 5 HV. Microscopic studies reveal that the attained UFG structure consists predominantly of the grains of α and β phases in the ratio of 92.8% and 7.2%, respectively. This article also considers the nature of the high strength of Ti–6Al–4V subjected to HPT Текстовый файл AM_Agreement |
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2024
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| Online Access: | https://doi.org/10.1002/adem.202300814 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=672450 |