METHOD FOR COATING DEPOSITION ON FINISHED SURFACES OF TITANIUM AND TITANIUM ALLOY PRODUCTS Russian patent published in 2015 - IPC C23C28/00 C23C4/10 C25D11/02 

FIELD: chemistry.

SUBSTANCE: method involves electro-plasma spraying of alumina powder having a particle size of 50-100 mcm on a product surface at a spraying distance from 100 to 120 mm at arc current 300 to 350 A and anodic micro-arc oxide coating at current density (1-2)×10³ A/m², for 10 to 30 minutes in a sodium hydroxide alkaline electrolyte in an amount of 1-3 g/l.

EFFECT: improved mechanical properties of plasma-sprayed coatings on titanium and its alloys, particularly micro-hardness and reduced time of coating deposition.

2 dwg, 2 tbl, 1 ex