Choice of optimum mode of heat treatment  of the titanic BT20 alloy  with application of a quantitative metallography  and analysis of chemical phases composition

In work results of structural and phase, chemical and physicomechanical properties of industrial preparations from BT20 alloy are presented. Features of structural and phase transformations and accompanying redistribution of alloying elements depending on a wide interval of temperatures heating are studied. The optimum mode of heat treatment is offered.