Abstract
Quintary Zr52.5Cu17.9 Ni14.6Al10Ti5 bulk amorphous alloys were synthesized with industrial sponge zirconium. The wedge-shaped samples added with Sc were prepared. The mechanism of Sc increasing the GFA of the alloy was analyzed by means of X-ray diffraction, SEM and Energy Spectrum Analysis. The results showed that adding Sc to the alloy could cause the transformation of phase structure and the composition of the pre-separation phase in the transitional region of the quintary alloy. Sc with great capacity of deoxidization could decrease the existence of Zirconium oxide or Zirconium/oxygen clusters in the alloy, and eliminate heterogeneous nucleants in the melt. Consequently, adding Sc to the alloy could increase the GFA of the quintary alloy.
| Original language | English |
|---|---|
| Pages (from-to) | 1740-1743 |
| Number of pages | 4 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 35 |
| Issue number | 11 |
| State | Published - Nov 2006 |
Keywords
- Bulk metallic glass
- Glass forming ability (GFA)
- Transitional region
- Zirconium based amorphous alloy