Microstructure evolution of titanium alloy VT8М-1 with globular-lamellar structure during deformation in temperature range of 650–800°С
- Authors: Dyakonov G.S.1, Semenova I.P.1, Lopatin N.V.2, Grishina Y.F.1, Melemchuk I.A.1
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Affiliations:
- Ufa State Aviation Technical University
- OAO Stupino Metallurgical Company
- Issue: Vol 8, No 1 (2017)
- Pages: 1-6
- Section: Article
- URL: https://journals.rcsi.science/2075-1133/article/view/205896
- DOI: https://doi.org/10.1134/S2075113317010129
- ID: 205896
Cite item
Abstract
The microstructure evolution and mechanical behavior of the two-phase titanium VT8M-1 alloy with initial globular-lamellar structure are investigated during compression in the temperature range of 650–800°C at a strain rate of 1.4 × 10–3 s–1. It is established that the microstructure evolution of the alloy during compression is associated with the development of globularization and dynamic recrystallization of α-phase lamellae with subsequent formation of globular-shaped particles. The extent of the steady-state flow stress and the average size of recrystallized α-phase particles in the alloy increase as the temperature of plastic deformation is increased from 650 to 800°C. The possible formation of ultrafine-grained structure in the VT8M-1 alloy in the studied temperature–rate conditions of plastic deformation is shown.
About the authors
G. S. Dyakonov
Ufa State Aviation Technical University
Author for correspondence.
Email: dgr84@mail.ru
Russian Federation, Ufa, 450008
I. P. Semenova
Ufa State Aviation Technical University
Email: dgr84@mail.ru
Russian Federation, Ufa, 450008
N. V. Lopatin
OAO Stupino Metallurgical Company
Email: dgr84@mail.ru
Russian Federation, Stupino, Moscow oblast, 142800
Yu. F. Grishina
Ufa State Aviation Technical University
Email: dgr84@mail.ru
Russian Federation, Ufa, 450008
I. A. Melemchuk
Ufa State Aviation Technical University
Email: dgr84@mail.ru
Russian Federation, Ufa, 450008