Thermomechanical treatment of 70/30 brass containing iron impurity

Iron as a main impurity in cartridge brass reduced ductility and formability of the rolled sheets. In the present investigation the effect of thermomechanical treatment on the formability of 70/30 brass containing iron impurity has been considered. As a new finding it has been shown that thermomechanical treatment can significantly improve ductility of 70/30 brass containing 0.35% iron impurity. This effect is believed to be a result of particle coarsening caused by TMT which affect the recrystallization of the brass sheets.