The effect of temperature on carbon steel corrosion under geological conditions
作者： Y. El Mendili , A. Abdelouas , G. Karakurt , A. Aït Chaou , R. Essehli
DOI: 10.1016/J.APGEOCHEM.2014.11.008
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摘要: Abstract We investigated the role of temperature on carbon steel corrosion under simulated geological conditions. To simulate effect increase due to radioactive decay, we conducted batch experiments using Callovo-Oxfordian (COx) claystone and synthetic water formation with coupons at 30 °C 90 °C for 6 months. The products have been studied by scanning electron microscope/energy dispersive X-ray spectroscopy, diffraction micro-Raman spectroscopy. At 30 °C, showed magnetite iron sulphide, indicating activation sulphate-reducing bacteria. a continuous sulphide layer was identified surface reduction hydrogen pyrite originating from into pyrrhotite sulphide. Thus, production may occur even in absence microbial activity high must be taken consideration regarding near-field geochemical evolution.
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