Fe-2%Ni 합금의 고온 산화
High-temperature Oxidation of Fe-2%Ni Alloys
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초록
Fe-2 wt.%Ni alloys were fabricated by metal powder injection molding, and their oxidation behavior at 600-700 ℃ for 30 h in air was studied in order to find the effect of the small addition of Ni in the iron matrix on the high-temperature oxidation. Oxide scales that formed after oxidation consisted primarily of Fe2O3, where microscopic voids were scattered. Nickel was segregated initially at the scale/matrix interface, and later at the lower part of the Fe2O3 scale. At 600 ℃, Fe-2wt.%Ni alloys oxidized parabolically initially, and linearly after 15 h. At 650-700 ℃, they oxidized linearly from the initial period. Although Fe-2wt.%Ni alloys oxidized slower than pure iron, their oxidation rates were relatively fast.
Abstract
Fe-2 wt.%Ni alloys were fabricated by metal powder injection molding, and their oxidation behavior at 600-700 ℃ for 30 h in air was studied in order to find the effect of the small addition of Ni in the iron matrix on the high-temperature oxidation. Oxide scales that formed after oxidation consisted primarily of Fe2O3, where microscopic voids were scattered. Nickel was segregated initially at the scale/matrix interface, and later at the lower part of the Fe2O3 scale. At 600 ℃, Fe-2wt.%Ni alloys oxidized parabolically initially, and linearly after 15 h. At 650-700 ℃, they oxidized linearly from the initial period. Although Fe-2wt.%Ni alloys oxidized slower than pure iron, their oxidation rates were relatively fast.
참고문헌 (15)
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