Unraveling the Corrosion Mechanism and Electrochemical Properties of the Rust Layer for Weathering Steel with Different SO42- Concentrations in the Simulated Atmosphere

Key Points

• Corrosion mechanisms were identified, indicating the impact of different sulfate concentrations on the rust layer.
• Notably, increased sulfate concentrations resulted in significant variations in electrochemical properties of the rust layer.
• The study applied electrochemical assessments to evaluate the effects of sulfate on the corrosion behavior of weathering steel.
• Understanding these mechanisms supports the development of better corrosion protection methods for infrastructure.