Observation of dislocation in some binary and ternary copper base alloys of F.C.C. structure

In this communication an attempt has been made to study by transmission electron microscopy, the various dislocations that were observed in some binary and ternary alloys of copper-zinc and aluminium after various degrees of rolling. Stacking fault nodes and fringes were frequently observed for all the alloys except for extra pure copper. The shape of the stacking fault nodes found gradually to decrease with increase in zinc and decrease in aluminium content. (Mr. S.K. Bose, Scientist, National Metallurgical Laboratory, Jamshedpur); Melle M.F. Denanot and J. Caisso; Laboratorie Metallurgie de physique, Faculte des Sciences Universite de Poitiers, France)