The composite-like structure formation of lead brass by heterogenization of deformation at high temperature

The heterogenization of plastic deformation in shear bands creates a possibility to control the spatial distribution of precipitated phases by their preferential nucleation and growth on structural defects inside the shear bands. Basing on such a concept an experiment has been carried out on lead brass to check the possibility of the redistribution of α and β phases from a chaotic to ordered, composite-like form. The results reveal a significant effect of shear banding at high temperature on the spatial distribution of phases in the alloy. The yield point of material with composite-like structure is almost by 40% greater when compared with that of material treated in the conventional way, while ductility remains the same.