Structure and mechanism of the deformation of Grade 2 titanium in plastometric studies

ABSTRACT

In this paper, the results of plastometric and material studies on grade 2 titanium are presented. Cylindrical titanium samples were compressed at elevated temperatures on a Gleeble thermo-mechanical simulator. The process was captured in the form of stress-strain diagrams. Then, for the chosen-deformed samples, structural studies were performed on a digital light microscope. On the basis of the results, it was possible to determine the plastometric processing conditions that are most suitable for the fragmentation of the grains of the tested titanium. In order to find optimal processing parameters, it was also important to describe the plastometric process through the appropriate constitutive equations. Material constants in this equation were determined on the basis of a hyperbolic sinusoidal equation.

This paper is part of a thematic issue on Titanium.

KEYWORDS:

• Strain
• strain rate
• stress
• grain size
• constitutive equation
• structural research

Disclosure statement

No potential conflict of interest was reported by the authors.