ABSTRACT

The ingot structure influences the quality of wrought semifinished products inherently, and such influence becomes more obvious with lower levels of deformation. The cast material is characterized by the size, form, and primary direction of the main phase, form, and distribution of primary and secondary excess and insoluble phases, dendritic, local, and zone segregation of alloy components, as well as the nature and location of structural imperfections. All these structural characteristics determine the processability of alloys during casting and cold-working operations and affect the final properties of semifinished products, especially in massive parts along their heights, as well as their weldability.