Quantitative mapping of carbon content in archaeological ferrous metals with laser-induced breakdown spectroscopy

Xueshi Bai; Manon Gosselin; Philippe Dillmann; Florian Téreygeol; Hortense Allégre; Jessica Auber--Le Saux; Vincent Detalle

doi:10.1117/12.2592414

10 September 2021 Quantitative mapping of carbon content in archaeological ferrous metals with laser-induced breakdown spectroscopy

Xueshi Bai, Manon Gosselin, Philippe Dillmann, Florian Téreygeol, Hortense Allégre, Jessica Auber--Le Saux, Vincent Detalle

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Proceedings Volume 11784, Optics for Arts, Architecture, and Archaeology VIII; 117840Y (2021) https://doi.org/10.1117/12.2592414
Event: SPIE Optical Metrology, 2021, Online Only

Abstract

Carbon content is one of the most influential factors of the mechanical behavior of iron and steel and a time marker of the fabrication period. The quantitative assessment of carbon content distribution in archaeological artefacts gives us insights on their properties and nature. We performed micro-LIBS analysis on archaeological steel in order to reconstruct its carbon content distribution map. The quantitative mapping of the carbon distribution enabled us to infer the different phases of the metallographic structure without time-consuming Nital attack treatment. In addition, LIBS carbon content mapping revealed phases that are invisible with metallographic method.

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Xueshi Bai, Manon Gosselin, Philippe Dillmann, Florian Téreygeol, Hortense Allégre, Jessica Auber--Le Saux, and Vincent Detalle "Quantitative mapping of carbon content in archaeological ferrous metals with laser-induced breakdown spectroscopy", Proc. SPIE 11784, Optics for Arts, Architecture, and Archaeology VIII, 117840Y (10 September 2021); https://doi.org/10.1117/12.2592414

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