Year: 2026
Type: article
Abstract: The mechanism of pitting corrosion can be separated into nucleation and propagation stages. Most prior modeling work in this area has focused on potential-controlled conditions, where the outcomes are determined mainly by the pit propagation element. However, real corrosion does not occur under potential control; rather, there is a limited supply of cathodic current that must be shared between all simultaneously propagating pits, which is more closely represented by experiments under galvanostatic control. We have previously reported numerical simulations of multiple simultaneously propagating pits in galvanostatic conditions, and here we expand on this by incorporating the possibility of mergers between pits. Results are compared against various established methods for determining individual pit stability and predicting the maximum possible pit size in various environmental conditions.
Language: English
Subfield: Metals and Alloys
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $1,950
Funder: Qatar National Research Fund
Award: G2186267611
OpenAlex ID: W7204236179