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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: Eurocorr 2013 - European Corrosion Congress Título del capítulo: Corrosion behavior of 18Cr-18Mn experimental steel
A new 18Cr-18Mn alloy steel was developed by induction furnace melting process in accordance with requirements of industry of energy turbogenerator manufacturing. The steel were developed to increase corrosion and mechanical resistance of retaining rings. Their corrosion behavior were assessed by potentiodinamic polarization, electrochemical impedance spectroscopy and electrochemical noise techniques. In addition, nitrogen effect on corrosion resistance was study by inoculated via plasma. The highest corrosion resistant, were attributed to the nitrogen content and steel composition. Their corrosion, properties were due to chemical stability, high lattice order, structural state of the passive film and the ability to prevent diffusion of metal ions. Also, the nitrides tend to prevent the corrosive pits from growing up.
