Multiscale X-ray Microscopy, SEM, HR-FESEM- EDS and EMPA techniques have been used to explore the corrosion behavior of copper-based artefacts from the Phoenician-Punic site of Motya (Sicily, Italy). The stress corrosion, due to forging conditions, and dealloying have been investigated using 3D-imaging. At sub-micro-scale the results highlighted grain boundaries micro-segregations induced by As and the occurrence of copper-iron arsenate layers in a Cu-nail. Binary and ternary alloys revealed a marked enrichment of Sn content and a selective corrosion of Cu as determined by the calculation of dissolution factors.
3D imaging of micro-segregation and corrosion behavior of alloying elements in archaeological artefacts from Motya (Sicily, Italy) / Bernabale, M.; Cognigni, F.; Mura, F.; Nigro, L.; Montanari, D.; Rossi, Marco; De Vito, C.. - In: CORROSION SCIENCE. - ISSN 0010-938X. - 211:(2023), p. 110900. [10.1016/j.corsci.2022.110900]
3D imaging of micro-segregation and corrosion behavior of alloying elements in archaeological artefacts from Motya (Sicily, Italy)
Bernabale M.Primo
;Cognigni F.Secondo
;Mura F.;Nigro L.;Montanari D.;Rossi MarcoPenultimo
;De Vito C.
Ultimo
2023
Abstract
Multiscale X-ray Microscopy, SEM, HR-FESEM- EDS and EMPA techniques have been used to explore the corrosion behavior of copper-based artefacts from the Phoenician-Punic site of Motya (Sicily, Italy). The stress corrosion, due to forging conditions, and dealloying have been investigated using 3D-imaging. At sub-micro-scale the results highlighted grain boundaries micro-segregations induced by As and the occurrence of copper-iron arsenate layers in a Cu-nail. Binary and ternary alloys revealed a marked enrichment of Sn content and a selective corrosion of Cu as determined by the calculation of dissolution factors.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
