METHOD FOR OBTAINING A LAYERED COMPOSITE MATERIAL Ti-TiN FOR TRIBOLOGICAL PURPOSES Russian patent published in 2022 - IPC C23C14/35 C23C14/02 C23C14/06 C23C14/16 C23C14/54 

FIELD: layered composite material production technology.

SUBSTANCE: invention relates to a technology for producing a layered composite material Ti-TiN for tribological purposes based on a heat-treated aluminum alloy with alternating layers of titanium and titanium nitride of various thicknesses obtained by magnetron sputtering. This composite material can be used in mechanical engineering, medicine, aircraft building, and in the creation of products with enhanced protective corrosion-resistant properties. The method includes heat treatment of the substrate, its hardening, aging of the substrate for 300-600 min, placing this substrate in a chamber, creating a high vacuum of 6×10^-3 Pa, after which the chamber is filled with argon at a pressure of 0.4 Pa, cleaning and activation of the substrate surface with an ion source for 2-15 min and again create a high vacuum of 6×10^-3 Pa, fill the chamber with argon to a working pressure of 0.4 Pa, sputter Ti for 10-30 min using a magnetron sputtering systems in an argon atmosphere, let nitrogen into the chamber together with argon, after letting nitrogen into the chamber, reduce the amount of argon to a ratio to nitrogen equal to 1:1, followed by TiN deposition for 10 min, then TiN deposition is carried out at argon to nitrogen ratios, equal to 1:2, 1:3, after which cooling is carried out.

EFFECT: invention makes it possible to increase the wear resistance of a structural aluminum alloy during abrasion by more than 30% due to the production of compositions from surface layers containing alternating layers of titanium and titanium nitride with a wide zone of the transition layer between the substrate and the surface layer of titanium.

1 cl, 1 ex