How does the addition of molybdenum improve the corrosion resistance of cast iron figurative sculptures?

The addition of molybdenum significantly improves the corrosion resistance of cast iron figurative sculptures by forming a stable, protective oxide layer on the metal surface. Molybdenum, a transition metal, integrates into the iron matrix during casting, enhancing its ability to resist oxidation and chemical attacks from moisture, acids, and salts. This is particularly crucial for outdoor sculptures exposed to weathering.

Molybdenum also refines the microstructure of cast iron, reducing porosity and increasing density, which further limits the penetration of corrosive agents. Additionally, it boosts the alloy's passivation ability, slowing down rust formation. As a result, sculptures retain their aesthetic and structural integrity for decades, even in harsh environments. This makes molybdenum an invaluable additive for artists and foundries prioritizing durability in their work.