Hot Upsetting Simulation for Intermetallic Titanium-Based VTI-4 Alloy under High-Rate Loading

• Published in: Inorganic materials : applied research Vol. 12; no. 4; pp. 1000 - 1006
• Main Authors: Avtaev, V. V., Grinevich, D. V., Zavodov, A. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.07.2021; Springer Nature B.V
• Subjects: Chemistry; Chemistry and Materials Science; Finite element method; Hot upsetting; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Materials Science; Modulus of elasticity; Plastic deformation; Simulation; Titanium base alloys; Upsetting; stress-strain state; intermetallic alloy; tests at elevated temperatures; simulation; titanium alloy; upsetting; mechanical testing
• ISSN: 2075-1133; 2075-115X
• DOI: 10.1134/S2075113321040055

Upsetting tests of VTI-4 alloy samples at a temperature of 1010°C under high-rate loading have been carried out. On the basis of the test results, the elastic modulus, as well as the level of axial and radial plastic strain within the end zone and within the central zone at each stage of loading, has been determined. Criteria are proposed for the correspondence between finite element simulation and experimental data, and a model diagram is plotted for the deformation of the VTI-4 alloy at a temperature of 1010°C and a deformation rate of 2.5 s –1 . As a result of the simulation, a relationship between the material structure obtained during high-rate upsetting and the stress-strain state within different zones has been determined.