Abstract
The oxide scale on Fe-3Si alloy was studied in oxygen for 0.03 ∼ 3.72 ks at 1073 K. The formation of blister on the Fe-3Si alloy was observed after oxidation at 1073 K for 0.12 ks. The blister was 100 ∼ 200 μm in size, and its oxide scale was about 1 μm in width. The concentration of oxygen was observed at the underlying surface of blister. The oxide scale on the Fe-3Si alloy was spherical and insular in shape at the early stages of oxidation, and grew laterally, and then changed to planar oxide scale layer.
