The second part of the article describes the results of the research of technological properties (formability and weldability in the solid state) of a sheet titanium alloy VT6 (Ti-6Al-4V) with improved superplastic properties at low temperatures.

The paper describes the results of long-term investigations on the development of the technology of superplastic forming and diffusion bonding (SPF/DB) conducted at the Institute for Metals Superplasticity Problems, Russian Academy of Sciences for producing standard articles of aero-space engineering, such as hollow blades, wing and shell panels. The process of solid-state joint formation in titanium alloy sheets during SPF was studied. The prospects of the development of the SPF/DB technology are considered and the latest results are discussed.