Influence of Ti6Al4V Alloy Microstructure and Processing Parameters of Hot Deformation (Forging) on the Formation of Cup-Shaped Product

Issues » Volume 48, Issue 8

O. M. Ivasyshyn$^{1}$, H. A. Bahlyuk$^{2}$, V. I. Bondarchuk$^{1}$, S. F. Kyrylyuk$^{2}$, P. Ye. Markovs’kyy$^{1}$

$^{1}$G. V. Kurdyumov Institute for Metal Physics, N.A.S. of Ukraine, 36, Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
$^{2}$I. M. Frantsevich Institute for Problems of Materials Science, N.A.S. of Ukraine, 3, Omeljan Pritsak Str., UA-03142 Kyiv, Ukraine

Received: 17.07.2026; final version - 22.07.2026. Download: PDF

The influence of the microstructure type of the titanium Ti-6Al-4V alloy on the formation of a cup-shaped part by two-stage hot plastic deformation by forging is studied. As found, surface cracks in a strictly localized region form in the case of a globular α + β microstructure, whereas this is not observed in a microstructure with unrecrystallized plastic particles of the α-phase. A scheme explaining such a locking action of the α-phase plates is proposed, and performed finite-elements’ simulation has established the occurrence of a complex stress state in this area, which causes the nucleation of surface cracks.

Key words: titanium, Ti-6Al-4V alloy, microstructure, hot deformation, forging, stresses.

URL: https://mfint.imp.kiev.ua/en/abstract/v48/i08/0907.html

DOI: https://doi.org/10.15407/mfint.48.08.0907

PACS: 06.60.Vz, 46.50.+a, 61.72.Ff, 61.72.Hh, 62.20.M-, 81.20.-n, 81.40.Np

Citation: O. M. Ivasyshyn, H. A. Bahlyuk, V. I. Bondarchuk, S. F. Kyrylyuk, and P. Ye. Markovs’kyy, Influence of Ti6Al4V Alloy Microstructure and Processing Parameters of Hot Deformation (Forging) on the Formation of Cup-Shaped Product, Metallofiz. Noveishie Tekhnol., 48, No. 8: 907–918 (2026)

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