Teuta Dilo

Archaeometallurgical Characterization of Some Ancient Copper and Bronze Artifacts from Albania

Ancient copper and bronze artifacts from different Albanian archaeological sites have been analyzed by X‐ray‐fluorescence analysis to determine the type of alloy and elemental composition and by Optical Microscopy for the investigation of corrosion products and microstructure of the bulk metal. Three bronze coins excavated in Dyrrahu, dating to the IIIrd–IInd century B.C, are composed of copper, tin and lead. Both studied nails, one excavated in Dyrrahu (IVrth–IIIrd century B.C), and the other one found inside an amphora in a ancient ship close to the coast of Saranda (VIth–IVrth century B.C), are composed of copper. The strata‐graphical morphology and microstructure images from microscopic examinations allowed us to identify different corrosion products and the diverse stages of metallurgical and mechanical treatment during their manufacture.

The Microstructure and Hardness of Hot Dip Galvanized Steel During Wire Drawing

The steel wire samples are hot‐dip‐galvanized. The zinc coating is preformed using the standard method. To recognize the behavior of the zinc coated steel wire during the submission to deformation, the wire samples are drawn on a machine designed for this aim and then investigated. In this research is represented the phase structure of the zinc coated samples. Afterwards the thickness of the layer and the hardness of the hot‐dip galvanized steel depending on the drawing is represented.