QUANTITATIVE STUDY OF Sb GRAIN BOUNDARY SEGREGATION IN RAPIDLY QUENCHED Cu-Sb ALLOYS

In the present work, we used Cu-Sb alloy system as a model to study grain boundary segregation in specimens prepared by rapid quenching. Ribbons of Cu-Sb alloys of single Cu phase and polycrystalline structure containing 0.01, 0.08, and 2wt% Sb prepared by single roller melt spinning were used as specimens, and the segregation was studied by using energy dispersive X-ray spectrometer attached to a scanning transmission electron microscope. Sb grain boundary segregation was detected in the 0.08 and 2wt% Sb specimens and the degree of segregation in the