FIELD: mechanical engineering; structural members of power generating plants such as turbocompressor rotors. SUBSTANCE: structural member has part made of titanium gamma aluminide based alloy, steel part and nickel-based alloy connecting part. Part of titanium gamma aluminide alloy and steel part are rigidly connected through connecting part. Titanium gamma aluminide part is connected with connecting part by friction welding method. Nickel-based alloy contains at least 65 % of nickel by weight. Thanks to it titanium gamma aluminide part can be connected by friction welding with connecting part at relatively low temperature. Friction welding method considerably reduces formation of cracks in titanium gamma aluminide part susceptible to embrittling. EFFECT: improved quality of connection. 11 cl, 1 dwg
