STACKING FAULT ENERGY ANALYSIS FROM POINT OF VIEW OF PLASTIC DEFORMATION RESPONSE OF THE TWIP AND TRIPLEX ALLOYS

In contribution attention to stacking fault energy level of high manganese alloys is payed. Stacking fault energy is an important parameter influencing deformation mechanism type realized in above mentioned alloys. The level of stacking fault energy can be connected with a) dislocation gliding both partial and full ones, further b) with gliding mechanism and deformation induced epsilon-martensite formation or with c) gliding mechanism in connection with twinning deformation process and/or d) gliding mechanism leading to shear bands realization. Chemical composition and further temperature influence makes the stacking fault energy the most important. In paper calculated values of stacking fault energy for various chemical compositions of high manganese alloys are presented. Those are confronted with results of some other papers.