METHOD OF PRODUCING LOW-MODULUS ALLOYS BASED ON TITAN-NIOBIUM SYSTEM BY SELECTIVE LASER ALLOYAGE Russian patent published in 2017 - IPC C22C1/04 C22C14/00 B33Y10/00 

FIELD: metallurgy.

SUBSTANCE: first, titanium and niobium powders are mechanically activated at a weight ratio of 6:4. Then the mechanically activated mixture of titanium-niobium powder is placed in a vacuum chamber in a laser processing zone with 0.05-0.1 mm layer. Forevacuum of at least 10^-2 Pa is created in the vacuum chamber, and argon is injected. Heating is performed by intense laser radiation to a temperature of 2800-3000°C, followed by holding at said temperature for 1-3 msec.

EFFECT: obtaining low-modulus titanium-niobium alloy of given composition with certain properties, with a uniform distribution of structural components throughout the alloy volume, which is environmentally friendly due to the absence of foreign materials in synthesis products, reducing the processing time and reducing the cost of the finished product due to the absence of pre-melting of TiNb alloy and subsequent production of powder from this alloy for selective laser alloyage.

3 cl, 3 ex