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Changes in the structural and textural state of titanium alloy VT41 after hot upsetting and annealing
https://doi.org/10.22349/1994-6716-2021-107-3-40-50
Abstract
A study of the structure of titanium alloy VT41 (Ti–Al–Si–Zr–Sn– β-stabilizers) was carried out on a sample subjected to hot upsetting in the (α+β)-region – conditions simulating the stamping of a disk of a gas turbine engine (GTE). The features of the formation of the textural state of primary and secondary globular grains, as well as the kinetics of their dissolution with an increase in the annealing temperature, have been determined. As a result of heat treatment at 995°C, the homogeneity of the alloy structure significantly increases comparing to the deformed state, which is associated with the recrystallization of lamellar and small-globular grains and the retention of primary globular grains of the α-phase. The sequence of structural changes has been established during the annealing within the temperature range from 950 to 1040°C.
About the Authors
P. N. Medvedev
Federal State Unitary Enterprise “All-Russian Scientific Research Institute of Aviation Materials” (FSUE VIAM)
Russian Federation
Russian Federation
Cand Sc. (Phys-Math)
17 Radio St, 105005 Moscow
S. A. Naprienko
Federal State Unitary Enterprise “All-Russian Scientific Research Institute of Aviation Materials” (FSUE VIAM)
Russian Federation
Russian Federation
Cand Sc. (Eng)
17 Radio St, 105005 Moscow
O. S. Kashapov
Federal State Unitary Enterprise “All-Russian Scientific Research Institute of Aviation Materials” (FSUE VIAM)
Russian Federation
Russian Federation
17 Radio St, 105005 Moscow
E. V. Filonova
Federal State Unitary Enterprise “All-Russian Scientific Research Institute of Aviation Materials” (FSUE VIAM)
Russian Federation
Russian Federation
17 Radio St, 105005 Moscow
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Review
For citations:
Medvedev P.N., Naprienko S.A., Kashapov O.S., Filonova E.V. Changes in the structural and textural state of titanium alloy VT41 after hot upsetting and annealing. Voprosy Materialovedeniya. 2021;(3(107)):40-50. (In Russ.) https://doi.org/10.22349/1994-6716-2021-107-3-40-50
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