Search results for "Marine corrosion"

showing 2 items of 2 documents

Inhibition of Cor-Ten steel corrosion by “green” extracts of Brassica campestris

2018

Abstract Extract of Brassica campestris was tested as potential corrosion inhibitor for Cor-Ten steel in NaCl and acidic solutions, simulating a marine and an urban-industrial environment, respectively. Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were performed both in absence and in presence of the extract at room temperature. The surface chemical analysis was investigated by X-ray Photoemission Spectroscopy (XPS), before and after corrosion. Electrochemical results demonstrated that a very small concentration of Brassica campestris extracts can inhibit Cor-Ten corrosion in NaCl solution (inhibition efficiency of 80–84%) better than in acidic solutions. Su…

Materials sciencePhotoemission spectroscopyGeneral Chemical EngineeringBrassica02 engineering and technologyWeathering steelengineering.material010402 general chemistryElectrochemistry01 natural sciencesAcidic corrosionCorrosion'Green' corrosion inhibitorsCorrosion inhibitorchemistry.chemical_compoundMarine corrosionX-ray photoelectron spectroscopyWeathering steelGeneral Materials ScienceChemical Engineering (all)Acidic corrosion; Brassica campestris; Cor-Ten; Marine corrosion; Weathering steel; ‘Green’ corrosion inhibitors; Chemistry (all); Chemical Engineering (all); Materials Science (all)biologyChemistry (all)fungifood and beveragesGeneral Chemistry021001 nanoscience & nanotechnologybiology.organism_classificationBrassica campestris'Green' corrosion inhibitor0104 chemical sciencesDielectric spectroscopychemistryCor-TenBrassica campestriengineeringMaterials Science (all)0210 nano-technology‘Green’ corrosion inhibitorsNuclear chemistry
researchProduct

Double Step Electrochemical Process for the Deposition of Superhydrophobic Coatings for Enhanced Corrosion Resistance

2021

Superhydrophobic surface on anodized AA5083 sample was obtained by an electrochemical process. Scanning Electron Microscopy and Fourier Transform Infrared Spectroscopy analyses revealed the hierarchical structure of the coating and the presence of manganese stearate. These features were crucial for the coating superhydrophobicity, demonstrated by a measured contact angle of ~ 163° and its self-cleaning ability. Electrochemical characterization in an aqueous solution mimicking seawater proved an enhanced corrosion resistance due to the superhydrophobic coating with respect to anodized AA5083 sample that also lasted after 20 immersion days in Cl- containing electrolyte.

Materials scienceRenewable Energy Sustainability and the EnvironmentAnodizingScanning electron microscopeengineering.materialCondensed Matter PhysicsSuperhydrophobic coatingSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCorrosionAA5083 Electrodeposition Marine corrosion Superhydrophobic Stearic acid Self-cleaningContact anglechemistry.chemical_compoundSettore ING-IND/23 - Chimica Fisica ApplicataCoatingchemistryChemical engineeringStearateMaterials ChemistryElectrochemistryengineeringFourier transform infrared spectroscopy
researchProduct