METHOD FOR PRODUCING TITANIUM ALLOY BASE PROTECTIVE COATINGS Russian patent published in 2001 - IPC

FIELD: production of wear- and corrosion-resistant strengthening coatings. SUBSTANCE: method involves covering surface under treatment with layer of powder incorporating flux-forming component such as fluorite and modifying component chosen from group including boron carbide, titanium aluminide, nitrides, borides, silicides, carbides of metals whose melting point is below 1500 C, or their mixtures; mass thickness σ_m[g cm^-2] of powder layer modifying component is found from equation σ_m = K (E - b), where K = (0.06 - 0.1) [g cm^-2 MeV^-1]; b = 0.3 [MeV]. Structure obtained is exposed to scanning beam of relativistic electrons whose energy is minimum 0.5 MeV at power density of 10⁸-10⁹ W/m² and exposure time for each point not longer than twice the ratio of square of electron penetration through material under treatment to its thermal diffusivity. Method provides for producing high-strength coatings of up to 3 mm in thickness. EFFECT: reduced heat energy consumption, enhanced efficiency and stability of coating production. 2 cl, 1 ex