Study of the effect of annealing on structure and properties of thin bimetallic strip brass - aluminium - brass

The aim of the research was to explore the effect of annealing on the structure and properties of thin bimetallic strip (10 % Zn brass - 2 % Mg aluminium - 10 % Zn brass) after plating (welding) by cold rolling. In the process of the strip annealing the intermetallics appeared on the border of the contact layers. The intermetallics quantity, structure and chemical composition depend on the annealing time. The appearance of intermetallics in the transition area leads to the decrease in the adhesive strength of layers. The optimal annealing period reduces the negative effect of intermetallic compounds and enables to obtain the finest bimetallic strip.