Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1600978 | Intermetallics | 2010 | 5 Pages |
Abstract
The formation of Ni-based B-Fe-Ni-Si-Ta bulk metallic glasses is explored in this work. The alloy compositions are determined by using a combination of the cluster line approach, the minor alloying strategy and the substitutions of similar elements. The basic B-Ni-Si ternary compositions are first determined by the intersection points of different cluster lines, B-Ni cluster to Si and Ni-Si cluster to B, and then are minor-alloyed with 4 at.% Ta. Finally Fe is added to partially substitute for Ni to further improve the glass-forming abilities. Bulk metallic glasses with diameters of 3 mm are formed at compositions [B17.7(Ni1âxFex)70.5](Si7.8Ta4), x = 0.35-0.45, which also exhibit good mechanical and corrosion-resistant properties. Furthermore, these compositions can be expressed using our cluster-plus-glue-atom model as [B2(Ni,Fe)8]1(Si,Ta)1.33. BMGs with compositions satisfying [B2(Ni,Fe)8](Si, Ta)1 are also obtained.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
C.L. Zhu, Q. Wang, Y.M. Wang, J.B. Qiang, C. Dong,