Air-oxidation of an amorphous Fe₇₀C₁₀P₁₀B₅Mo₅ alloy at 400–500 °C

This research was conducted to demonstrate the oxidation behavior of an Fe₇₀C₁₀P₁₀B₅Mo₅ amorphous ribbon investigated at 400–500 °C in dry air. The oxidation kinetics of the glassy alloy generally obeyed the parabolic-rate law with its oxidation rate constants steadily increasing with temperature. The oxidation rates of this alloy were slower than those of pure Fe and this indicated its better oxidation-resistant ability. The scale formed on the glassy alloy consisted mostly of a Fe₂O₃/Fe₃O₄ mixture, while minor amount of B₂O₃ was detected in the innermost scale.