Application ID: 100101
Pitting corrosion is a type of localized corrosion by which local cavities, pits, are formed on an initially smooth metal surface.
A pit may be initialized by surface defects, such as an inhomogeneities in composition or shape, or mechanical abuse resulting in a small scratch or dent.
How the pit grows depends on a number of factors such as the type of metal, salinity, pH, and temperature.
A fundamental understanding of the pitting process is paramount for proper material selection in environments susceptible to this type of corrosion.
This tutorial investigates the fundamental mechanism of pit propagation by simulating electrode kinetics, mass transport, charge transport, and the resulting geometry deformation.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
- COMSOL Multiphysics® and
- either the Battery Design Module, Corrosion Module, or Electrodeposition Module
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.