Cover Picture: Materials and Corrosion. 1/2023

Cover: Schematic diagram of the corrosion forms in a synthetic solution representing the Callovo-Oxfordian porewater during a month at 120°C observed on (left) the ferrito-pearlitic steel and (right) on the ferritic samples. The composition and structure of the corrosion product layers appear very similar. They are composed of a bilayer of siderite enriched in calcium and magnesium, with magnetite islets on the internal layer and calcite islets at the metal original surface. More detailed information can be found in: Hélène Lotz, Delphine Neff, Florence Mercier-Bion, Christian Bataillon, Philippe Dillmann, Emmanuel Gardes, Isabelle Monnet, Iron and steel corrosion mechanisms in a carbonate rich pore water: multiscale characterization of the corrosion product layers, Materials and Corrosion 2023, 74, 8.