【摘要】 采用旋铸急冷工艺分别在大气和真空环境中获得了Al85Ni10Zr5和Al85Ni8Zr3Cu2Y2韧性非晶合金带材,利用X射线衍射和示差扫描量热仪(DSC)对条带的显微结构及热稳定性进行了分析.结果表明,无论在真空还是在大气条件下,Y,Cu元素的添加都提高了Al85Ni10Zr5合金的非晶形成能力及热稳定性.研究发现,合金成分及冷却速率对非晶的形成起了重要作用,而甩带环境对Al Ni Zr合金系的非晶形成影响不大.更多还原

【Abstract】 Formation and Thermal stability of rapidly solidified amorphous alloys Al₈₅Ni₁₀Zr₅ and Al₈₅Ni₈Zr₃Cu₂Y₂ prepared by melt spinning method under vacuum and atmosphere conditions are investigated by x-ray diffraction and differential scanning calorimetry （DSC）.Addition of elements Yttrium and Copper increases the GFA and thermal stability of Al₈₅Ni₁₀Zr₅ alloy.It is found that its composition and cooling rate play an important role in formation of Al-Ni-Zr amorphous alloys and the roller spinning environment,however,does not.更多还原