Effect of the Temperature and Rate Parameters of Hot Deformation on the Mechanical Behavior of Forged Titanium Alloy VT14 Under Compression and Tension.

The structure, the phase composition, and the physical and mechanical properties of a hot-forged billet from titanium alloy VT14 are studied by the methods of microstructural and x-ray diffraction analyses, micro-indentation, thermodynamic computations with the help of the ThermoCalc software, and thermomechanical tests in a Gleeble 3800 facility. The flow stress and the strain heating are shown to depend on the degree of deformation in compressive and tensile tests at strain rates 1 and 10 sec ^{– 1} and temperatures 900, 925, 950, and 975°C. The results of the study are analyzed and compared to the available reported data. [ABSTRACT FROM AUTHOR]