Role of silicon in promoting exclusive Al2O3 formation on (Co32.4Cr26Ni33Al8Y0.6)100-Si medium-entropy alloys: Unraveling oxidation resistance mechanisms

Key Points

• Alumina formation significantly improves oxidation resistance in medium-entropy alloys, leading to longer lifespan.
• Key evidence shows that the presence of silicon positively influences alumina growth in these alloys.
• Assessment focuses on understanding oxidation mechanisms involved in (Co32.4Cr26Ni33Al8Y0.6)100-Si alloys.
• Findings highlight silicon's critical role in promoting protective layers, necessitating further studies on alloy performance.