Fig. 2: Mechanism of rust layer evolution and shedding.
From: Corrosion behavior and cellular automata simulation of carbon steel in salt-spray environment

a Corrosion mechanism of carbon steel20. b XRD curves of rust layer products. c SEM image and EDS (scale bars: 50 μm) analysis of the cross-section of the rust layer of Carbon Steel under the SST. d Schematic of the rust layer shedding process.