Microcrystalline ribbons of rapidly quenched alloys of the Ti - TiFe -
TiCu system are investigated by X-ray diffraction. The structural dia
gram of the system is constructed in rectangular coordinates. The none
quilibrium state of alloys is considered in relation to the constituti
on of the ray sections Ti - (Fe:Cu = 1:3, 1:1, 3:1) in the equilibrium
state and to the solidification conditions in the Ti - TiFe - TiCu sy
stem.