Phosphate-induced corrosion of nickel alloys in supercritical water: Mechanistic insights into passivation and accelerated corrosion at elevated temperatures

Key Points

• Accelerated corrosion occurs in nickel alloys due to phosphate presence in supercritical water, indicating significant material degradation over time.
• Corrosion rates may increase substantially at elevated temperatures, emphasizing the need for material resilience in high-temperature applications.
• Observational analysis of nickel alloys in supercritical water settings shows clear mechanistic insights into passivation dynamics.
• Understanding these corrosion mechanisms may enable better material choices and design strategies for high-performance applications.