About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Environmental Degradation of Multiple Principal Component Materials
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Presentation Title |
Future from the Past: Insights from Neutron and X-ray CT on Iron Archaeological Artifacts |
Author(s) |
Ocson Reginald Cocen, Mahdieh Shakoorioskooie, Elodie Granget, Anders Kaestner, David Mannes, Jean-Marie Drezet, Laura Brambilla |
On-Site Speaker (Planned) |
Ocson Reginald Cocen |
Abstract Scope |
Elucidating long-term corrosion of ferrous objects in the ground is a challenging task. When exposed to a new environment, corroded ferrous objects are often unstable and reactive, so conventional analytical methods might not examine the as-buried conditions. In-situ visual observation approaches are deemed unfeasible as the soil is opaque. This talk will highlight an anoxic sample securement protocol on iron archaeological artifacts (IAA) and insights gained from material characterization campaigns. The IAA will first be analyzed using bimodal Neutron and X-ray tomography to record the as-undisturbed-as-possible condition. The IAA will be further intrusively cut, prepared, and analyzed only after tomography analysis via conventional microscopy and spectroscopy methods, i.e., SEM-EDX and Raman spectroscopy. The combination of these multimodal analyses produced 3D information on the sample characterization efficiently. An air pocket and delaminated layers could be captured. The remaining metallic iron is enwrapped by heterogenous (phase- and geometry-wise) corrosion layers. |
Proceedings Inclusion? |
Planned: |
Keywords |
Environmental Effects, Other, Other |