METHOD FOR PRODUCING A HEAT-RESISTANT WEAR-RESISTANT LAYER BASED ON TITANIUM ALUMINIDES ON TITANIUM AND TITANIUM ALLOY Russian patent published in 2022 - IPC B23K9/04 B23K103/18 

FIELD: titanium products.

SUBSTANCE: invention can be used when applying heat-resistant and wear-resistant layers to products made of titanium and titanium alloys operating at elevated temperatures and under abrasive wear conditions. Electric arc surfacing is carried out with a non-consumable electrode in an inert shielding gas environment using two filler wires made of aluminum and niobium. The surfacing mode is selected from the condition of obtaining a deposited layer with an aluminum content in the range of 5-25% and niobium at the level of 5-15%. The specified content of aluminum and niobium during surfacing ensures the formation of the structure of the deposited metal based on a supersaturated solution of aluminum in titanium and the Ti₃Al intermetallic phase alloyed with niobium.

EFFECT: alloying with niobium within the specified limits provides an increase in heat resistance and wear resistance of the deposited layer.

1 cl, 1 ex