Measurements of Stacking Faults in Cold-Worked Alpha Brass

Abstract

Barrett has suggested that stacking faults on the (111) planes should contribute to the broadening of the x-ray reflections from a cold worked face centered cubic metal. Paterson's recent treatment of this problem predicts peak shifts as a result of stacking faults, and hence gives a method for uniquely proving their existence and measuring the probability of occurrence. The (111) reflection moves toward large angle and the (200) reflection toward small angle, so that the separation of these two peaks decreases as a result of stacking faults. Finally, for the (222)-(400) pair the opposite effect is predicted.