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In the present study, the oxidation behavior of Cu50Zr50 and Cu46Zr46Al8 metallic glasses has been investigated using transmission electron microscopy with a particular attention on the oxidation behavior in the supercooled liquid state. Identifi cation of the oxidation product after continuous heating treatment shows that in Cu50Zr50 metallic glass, ZrO2 with the monoclinic structure forms on the supercooled liquid as well as on the crystallized matrix. On the contrary, in Cu46Zr46Al8 metallic glass, ZrO2 with the tetragonal structure forms on the supercooled liquid, but that with the monoclinic structure forms on the crystallized matrix. The result indicates that the Cu50Zr50 metallic glass exhibits far better oxidation resistance in the supercooled liquid state than the Cu46Zr46Al8 metallic glass.
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참고문헌 (24)
참고문헌 신청
Carmo M / 2011 / Bulk metallic glass nanowire architecture for electrochemicalapplications / ACS Nano 5 : 2979 ~ 2983
Conner R D / 1997 / Fracture toughness determination for a beryllium-bearing bulk metallic glass / Scripta. Mater 37 : 1373 ~ 1378
Gilbert C J / 1997 / Fracture toughness and fatigue-crack propagation in a Zr-Ti-Ni-Cu-Be bulk metallic glass / Appl. Phys. Lett 71 : 476 ~ 478
Inoue A / 2000 / Stabilization of metallic supercooled liquid and bulk amorphous alloys / Acta. Mater 48 : 279 ~ 306
Jayaraj J / 2006 / Corrosion behavior of Ni-Zr-Ti-Si-Sn amorphous plasma spray coating / Corros. Sci 48 : 950 ~ 964
Conner R D / 1997 / Fracture toughness determination for a beryllium-bearing bulk metallic glass / Scripta. Mater 37 : 1373 ~ 1378
Gilbert C J / 1997 / Fracture toughness and fatigue-crack propagation in a Zr-Ti-Ni-Cu-Be bulk metallic glass / Appl. Phys. Lett 71 : 476 ~ 478
Inoue A / 2000 / Stabilization of metallic supercooled liquid and bulk amorphous alloys / Acta. Mater 48 : 279 ~ 306
Jayaraj J / 2006 / Corrosion behavior of Ni-Zr-Ti-Si-Sn amorphous plasma spray coating / Corros. Sci 48 : 950 ~ 964
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