Search results for "Duplex stainless steel"

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Electronic properties and corrosion resistance of passive films on austenitic and duplex stainless steels

2018

Abstract Passive films were grown at constant potential in acidic (pH∼2) and alkaline (pH∼13) solutions on chromium, AISI 304L, AISI 316L and Duplex stainless steels. Passive films on chromium grow following a high field mechanism considering the presence of dissolution phenomena. According to the photoelectrochemical characterization, passive films on Cr have a bandgap of 3.4 eV when formed in acidic solution, and of 2.4 eV when formed in alkaline solution due to the formation of Cr(OH)3. These films result to be poorly stable against anodic dissolution due to a very anodic flat band potential. Conversely, impedance and photoelectrochemical measurements proved that passive films on stainle…

ChromiumMaterials sciencePassivationBand gapAustenitic stainless steel020209 energyGeneral Chemical EngineeringPhotoelectrochemistryPassive filmCorrosion resistancechemistry.chemical_element02 engineering and technologyengineering.materialCorrosionChromiumPhotoelectrochemistryMott-Schottky0202 electrical engineering electronic engineering information engineeringElectrochemistryChemical Engineering (all)Austenitic stainless steelDissolutionAustenite021001 nanoscience & nanotechnologySettore ING-IND/23 - Chimica Fisica ApplicatachemistryChemical engineeringengineeringDuplex stainless steel0210 nano-technology

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