METHOD FOR OBTAINING A MULTILAYER DETAIL FROM A TITANIUM ALLOY Russian patent published in 2018 - IPC B32B15/01 C23C14/48 B21B3/00 

FIELD: technological processes.

SUBSTANCE: use: the invention relates to a method for producing a multilayered component from a titanium alloy. Ion-implantation modification of a sheet metal part from a titanium alloy is carried out by ion implantation of nitrogen, carbon or boron with an energy of 30–50 keV, current density of 35–50 mcA/cm² and fluence 10¹⁶–10¹⁸ ion/cm² and post-implantation annealing at a temperature of 450–550 °C and residual gas pressure 10^-3–5×10^-3 Pa for 1.5–3.5 h. Modified sheet is then folded in half and subjected to sheet rolling until an inner implantation layer is formed. Ion-implantation modification of the obtained two-layer part is repeated, which is then bent and rolled. Cycle is repeated until a predetermined number of layers will be obtained.

EFFECT: technical result consists in increase of the operational properties of sheet parts preliminarily subjected to ion implantation modification due to the repetition of this cycle up to the creation in the surface layers of a repeated ordered distribution of dislocations of polygonal type.

1 cl, 4 dwg, 1 ex