Comparison of cryogenic and cold deformation of commercially pure titanium

This paper focuses on comparing cryogenic and cold deformation of commercially pure titanium. The material was rotary-swaged at ambient (cold swaging) and cryogenic temperatures. The aim was to achieve high strengthening and preserve the material’s ductility. Cold and cryogenic mechanical working of commercially-pure titanium of two grades introduced true strains up to 1.8. Minute surface flaws occurred on workpiece surfaces. High strengthening was obtained in each material. Hardness profiles were measured on sections through the workpieces after forming. Additional findings on material properties were gathered by microstructure investigation. Fields of use of these deformed titanium grade 2 and titanium grade 4 are described.