6533b852fe1ef96bd12aadb5
RESEARCH PRODUCT
Reliability of numerical models for simulating galvanic corrosion processes
Kevin OgleB. VuilleminF. ThebaultF. ThebaultF. ThebaultC. AllelyRoland Oltrasubject
CUT-EDGESMaterials science020209 energyGeneral Chemical EngineeringINHIBITIONElectrochemical engineering02 engineering and technologySCANNING VIBRATING ELECTRODEsymbols.namesakeZINC0202 electrical engineering electronic engineering information engineeringElectrochemistryGalvanic cellComposite materialSVETComputer simulationIRONMetallurgyDEFECTS021001 nanoscience & nanotechnologyGalvanizationGalvanic corrosionMicroelectrodeElectrodesymbolsCOATED STEEL0210 nano-technologyCurrent densitydescription
International audience; Maturity of numerical simulation represents an important issue in the development of predictive models of galvanic corrosion. As widely used in electrochemical engineering, a coupled electrochemical-transport-reaction (CETR) model is recommended to simulate the current distribution above a galvanic corrosion cell made of the cut-edge of a galvanized steel sheet. Nevertheless, simulating current density distributions obtained experimentally by scanning vibrating electrode technique (SVET) above such a galvanic cell appears to be more accurate using an electrostatic model considering a homogeneous conductivity. In this case, the absence of concentration gradients next to the electrode surface results from convection induced by the microelectrode vibrations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-11-01 |