The present paper is devoted to the magnetohydrodynamic and technological peculiarities of refining and homogenization of a cast structure of solid-solution multi-component heat-resistant titanium alloys with intermetallics. Round and rectangular ingots of these alloys were produced in magnetically-controlled electroslag melting (MEM).
The key in the creation of the magnetically-controlled technology of melting of heat-resistant alloys of the new class is the different nature of hydrodynamic control of metal melting and ingot crystallization. The control is realized by external magnetic fields of different directivity, discrete cyclic action of melting electric current, and also by an integrated action of external fields and discrete electric currents.
Alloy with a uniform frame and dispersion strengthening was melted on the solid-solution base of alloy VT22 with additions of tin intermetallics. Heat-resistance of this alloy is 330-400 MPa in heating up to 800–850°C temperatures.