Stacking fault probabilities in hexagonal cobalt

Abstract

The effect of cold working and annealing on the stacking fault probabilities in h.c.p, cobalt has been studied. The composite broadening has been attributed to three causes-particle size, lattice strain and stacking faults. The particle-size and strain broadening have been separated in each case. The assumed strain models were both of Gaussian and Cauchy types. Line breadth measurements have been also carried out. Fault parameters decreased with annealing but there was no evidence of complete amfihilation.