The glass forming ability (GFA) of five Zr-based alloys, namely Zr62.5Al12.1Cu7.95Ni17.45, Zr63Al11.4Cu9.3Ni16.3, Zr63.5Al10.7Cu10.7Ni15.1, Zr64Al10.1Cu11.7Ni14.2,
and Zr65Al8.7Cu14.4Ni11.9, is studied based on the thermodynamic parameter i.e., the Gibbs free energy difference (ΔG(T
)) between the super-cooled liquid and the corresponding crystalline phase. Two different
equations of ΔG, given by Lad et al., are used and the calculated values of ΔG(T
) are plotted against the critical dimension (Z
max) to understand the relationship between the GFA and ΔG(T
It is found that ΔG(T
) obtained by Lad-1 expression, shows a strong correlation with Z
2 = 0.955). Other GFA parameters (γ
, α, δ, ξ, Φ,
2, ω′, β, β′, etc.) are also calculated to understand the glass forming ability and thermal stability of metallic glasses. Among all five compositions, Zr62.5Al12.1Cu7.95Ni17.45
is found to have the best glass forming ability with ΔG(T
) values to be 5.166 and 4.359 kJmol−1 respectively by Lad-1 and Lad-2 expression.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Critical Dimension (Zmax);
Gibbs Free Energy Difference (ΔG);
Glass Forming Ability (GFA)
Document Type: Research Article
Condensed Matter Physics Laboratory, Applied Physics Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Vadodara 390001, India
Publication date: November 1, 2016
More about this publication?
ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Ingenta Connect is not responsible for the content or availability of external websites