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Archaeologic analogues: microstructural changes by natural aging in carbon steels

journal contribution
posted on 2023-05-17, 18:04 authored by Munoz, EB, Fernandez, JC, Arasanz, JG, Peces, RA, Criado, AJ, Christian DietzChristian Dietz, Martinez, JA, Portal, AJC
When discussing the container material for highly active radionuclear waste, carbon steel is one of the materials most frequently proposed by the international scientific community. Evidently, security with respect to the container behaviour into deep geological deposits is fundamental. Among other parameters, knowledge about material mechanical properties is essential when designing the container. Time ageing of carbon steel, apart from possible alterations of the chemical composition (e.g. corrosion) involves important microstructural changes, at the scale of centuries and millenniums. The latter may cause variations of the mechanical properties of carbon steel storage containers, with the corresponding risk of possible leakage. In order to properly estimate such risk and to adjust the corresponding mathematical models to reality, the microstructural changes observed in this study on archaeologic samples are evaluated, comparing ancient and modern steels of similar chemical composition and fabrication processes.

History

Publication title

Journal of Nuclear Materials

Volume

349

Pagination

1-5

ISSN

0022-3115

Publisher

Elsevier Science Bv

Place of publication

PO Box 211, Amsterdam, Netherlands, 1000 Ae

Rights statement

Copyright 2005 Elsevier B.V.

Repository Status

  • Restricted

Socio-economic Objectives

Management of solid waste from energy activities

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