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The effect of atomic oxygen(AO) on the surface oxidation of several typical Cu-based bulk metallic glasses(BMGs) was studied in the present work.The AO source using in this study is generated by discharge plasma type ground simulation equipment.The AO erosion/oxidation resistances of the amorphous alloy samples were assessed based on the analysis of mass loss,surface color and microstructure.It is found that these Cu-based BMGs possess good AO erosion/oxidation resistance and their resistance to AO erosion/oxidation strongly depends on the chemical composition.For the samples containing more Ag and/or Cu,the AO erosion/oxidation resistance is weaker.The present result is important for designing new metallic glasses using as space materials.
The effect of atomic oxygen (AO) on the surface oxidation of several typical Cu-based bulk metallic glasses (BMGs) was studied in the present work. AO Source using in this study generated by discharge plasma type ground simulation equipment. AO erosion / oxidation resistances of the amorphous alloy samples were assessed based on the analysis of mass loss, surface color and microstructure. It is found that these Cu-based BMGs possess good AO erosion / oxidation resistance and their resistance to AO erosion / oxidation strongly depends on the chemical composition. For the samples containing more Ag and / or Cu, the AO erosion / oxidation resistance is weaker. the present result is important for designing new metallic glasses using as space materials.