Temperature ranges of superplasticity of titanium ortho alloys and their forging-stamping

The temperature range of superplasticity of the ВИТ1 ortho alloy is investigated, and the forging-stamping temperatures are determined. It is shown that dynamic recrystallization in the studied material during its tension is accompanied by pseudo-amorphization as a result of an increase in vacancies (pores), which contributes to the transition of shear deformations to viscous flow and the occurrence of micro cracks along grain boundaries during forging-rolling. Keywords ВИТ1 ortho alloy, forging-stamping, technological plasticity, superplasticity, pseudo-amorphization, viscous flow [email protected]