Magnetic susceptibility and viscosity of the pure chromium-nickel aluminide and the same doped with vanadium and titanium

The chromium-nickel aluminide is used as material for plasma-laser alloying of chromium-containing steels and alloys. The magnetic susceptibility and kinetic viscosity of the Cr0.448Ni0.019Al0.533 chromium-nickel aluminide and alloys with the Cr0.448Ni0.019Al0.530V0.003 vanadium and Cr0.448Ni0.019Al0.530Ti0.003 titanium additions are studied/ The conclusion is made, that at low overheatings above the liquidus the melts studied are in the nonequilibrium and possibly metastable state. The microareas, enriched with chromium and microareas with increased aluminium content are probably present therein. The transition to a more equilibrium state is realized at the temperature not lower than 1650 K. The introduction of vanadium microadditions increases the melt nonuniformity, whereas the presence of titanium decreases it. It may be assumed, that the choice of the corresponding melt thermal treatment may essentially change both physical properties and electron structure of the aluminide in the solid state