Effect of cold rolling on mechanical properties and ballistic performance of nitrogen-alloyed austenitic steels

In this paper, the effects of different amount of cold rolling on mechanical properties, microstructure and ballistic resistance of nitrogen containing austenitic stainless steel in two different conditions have been presented. The ballistic performance was measured in terms of energy absorption against deformable projectiles. It is found that increased percentage of cold reduction increases the strength and hardness with loss of ductility and decreases the energy absorption of material. The nature of failures and damages of the targets has been studied and also the microstructural characterization has been carried out.