Deformation Behavior of a VT18U Titanium Alloy in the Oxidized State

The influence of the isothermal annealing conditions in air (at 560 and 625°C for 1000 h) on the deformation behavior of a high-temperature VT18U titanium alloy under tension is studied. The plasticity of the alloy at room temperature decreases from 14 to ≈5% after annealing at the investigated temp...

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Bibliographic Details
Published in:Russian metallurgy Metally 2020-04, Vol.2020 (4), p.325-329
Main Authors: Kalienko, M. S., Leder, M. O., Volkov, A. V., Zhelnina, A. V., Panfilov, P. E.
Format: Article
Language:English
Subjects:
Annealing
Chemistry and Materials Science
Deformation
Heat resistant alloys
High temperature
Isothermal annealing
Materials Science
Metallic Materials
Oxygen content
Plastic properties
Room temperature
Structure and Properties of the Deformed State
Thickness
Titanium alloys
Titanium base alloys
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Summary:The influence of the isothermal annealing conditions in air (at 560 and 625°C for 1000 h) on the deformation behavior of a high-temperature VT18U titanium alloy under tension is studied. The plasticity of the alloy at room temperature decreases from 14 to ≈5% after annealing at the investigated temperatures. The thickness of the gas-saturated layer is 17 and 42 μm after annealing at 560 and 625°C, respectively. The main factor determining the plasticity of the alloy in the oxidized state is the oxygen content gradient in the gas-saturated layer.
ISSN:0036-0295
1555-6255
1531-8648
DOI:10.1134/S0036029520040114