Chemical composition dependence of atomic oxygen erosion resistance in Cu-rich bulk metallic glasses

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 年，卷（期）: 2012,（36）
• 页码范围: 4801-4804
• 页数: 4页
• 分类号: TG139.8
• 语种: 中文

摘要

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.