The effect of Sn substitution for Ni on the glass-forming ability was studied in Cu47Ti33Zr11Ni8-xSnxSi 1 (x = 0,2,4,6,8) alloys by using thermal analysis and X-ray diffractometry. With increasing x from 0 to 8, the glass transition temperature, Tg, of melt-spun Cu47Ti33Zr11Ni8-xSnxSi 1 alloys increased gradually from 720 to 737 K. On the other hand, the crystallization temperature, Tx, increased from 757 K at x = 0 to 765 K at x = 2, being nearly same with further increase of x. Partial substitution of Ni by Sn in Cu47Ti33Zr11Ni8Si1 promotes the glass formation. Both amorphous Cu47Ti33Zr11Ni8-xSnxSi 1 alloys prepared by melt spinning and injection casting showed similar crystallization process during continuous heating in DSC. Temperature range of undercooled liquid region exhibits good correlation with the critical diameter for the formation of an amorphous phase in injection casting.
Bibliographical noteFunding Information:
This work was supported by the Creative Research Initiatives of the Korean Ministry of Science and Technology. E.S.P. and H.K.L. are also grateful for the support from the Brain Korea 21 project.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry