Abstract
Archaeological artefacts made from iron and steel are often of critical importance for archaeometallurgical studies, which aim to understand the process of manufacturing, as the nearly complete alloy mineralization does not allow for any type of metallographic interpretation. In this study, three Iron Age sword blades dated from the second century BC (LaTène B2/D1) found in the archaeological site of Tintignac (Commune de Naves, Corrèze, France), were investigated. A multianalytical approach was employed to acquire a complete range of data from the partially or totally corroded objects. Analyses were carried out with the use of light optical microscopy, micro Raman spectroscopy, and scanning electron microscopy equipped with energy-dispersive x-ray spectroscopy (EDXS). Remnants of metallographic features—ghost microstructure—in the corrosion layers of the blades were observed, allowing for a partial reconstruction of the manufacturing process.
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Acknowledgements
The authors would like to thank C. Maniquet (head archaeologist of Tintignac excavations - INRAP-Limoges), M. Fabioux and the Compiègne facility of INRAP-Limoges, M. Drieux-Daguerre (Materia Viva, Toulouse), the city of Naves en Corrèze, and especially the mayor A. Brette for allowing the sampling and the examination of the blades. A special tribute has to be paid to E. Ilkova for her wise and fruitful support.
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Ghiara, G., Piccardo, P., Campodonico, S. et al. Microstructural Features in Corroded Celtic Iron Age Sword Blades. JOM 66, 793–801 (2014). https://doi.org/10.1007/s11837-014-0880-8
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DOI: https://doi.org/10.1007/s11837-014-0880-8