%0 Journal Article %T Iron and steel corrosion mechanisms in a carbonate rich pore water: Multiscale characterization of the corrosion product layers %+ Laboratoire Archéomatériaux et Prévision de l'Altération (LAPA - UMR 3685) %+ IRAMAT - Laboratoire Archéomatériaux et Prévision de l'Altération (IRAMAT-LAPA) %+ Service de la Corrosion et du Comportement des Matériaux dans leur Environnement (SCCME) %+ Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252) %A Lotz, Hélène %A Neff, Delphine %A Mercier-Bion, Florence %A Bataillon, Christian %A Dillmann, Philippe %A Gardes, Emmanuel %A Monnet, Isabelle %< avec comité de lecture %@ 0947-5117 %J Materials and Corrosion / Werkstoffe und Korrosion %I Wiley-VCH Verlag %8 2022-09-01 %D 2022 %R 10.1002/maco.202213417 %K cementite %K iron %K magnetite %K sidetire %K steel %Z Chemical Sciences/Material chemistryJournal articles %X Corrosion experiments were performed on a ferrito-pearlitic (P285-NH) and a ferritic steel (Armco) in a synthetic solution representing the Callovo-Oxfordian porewater during a month at 120°C. Corrosion product layers (CPLs) were characterized from micro to nanoscale in terms of morphology (electron microscopies), composition (energy dispersive X-ray spectroscopy), and structure (µ-Raman, selected area electron diffraction). Both systems present a Ca-siderite bilayer which interface locates the metal original surface, and nano to micrometric magnetite islets on the internal carbonated layer and at the M/CPL interface. The impact of cementite is highlighted in terms of morphology of the CPL and corrosion mechanism. %G English %2 https://cea.hal.science/cea-03769936/document %2 https://cea.hal.science/cea-03769936/file/MaterCorrosion_20220901.pdf %L cea-03769936 %U https://cea.hal.science/cea-03769936 %~ CEA %~ CNRS %~ UNIV-BM %~ UNIV-ORLEANS %~ INSA-ROUEN %~ UNIV-BM-THESE %~ COMUE-NORMANDIE %~ PUBNIMBE %~ DEN %~ INC-CNRS %~ IRAMIS-NIMBE %~ IRAMIS-CIMAP %~ CEA-UPSAY %~ UNIV-PARIS-SACLAY %~ UNIROUEN %~ ENSICAEN %~ UNICAEN %~ DEN-SACLAY %~ INSA-GROUPE %~ PHD_CNRS %~ UNIVERSITE-PARIS-SACLAY %~ ANR %~ CIMAP %~ GS-ENGINEERING %~ IRAMIS %~ GS-CHIMIE %~ GS-HUMANITIES-HERITAGE %~ GS-PHYSIQUE %~ INSTITUT-SCIENCES-LUMIERE %~ TEST2-HALCNRS