An Assessment of Binary Metallic Glasses: Correlations Between Structure, Glass Forming Ability and Stability (Preprint)
Abstract
The objective of this work is to explore the influence of the atomic structure of binary metallic glasses on glass-forming ability and thermal stability. A broad assessment of binary metallic glasses is given, with information on 619 distinct binary alloys from 162 binary glass systems. For each of these glasses, the structure is quantified with the efficient cluster-packing (ECP) model, using reported glass constitutions as input. The glass transition temperatures Tg, crystallization temperatures Tx, and liquidus temperatures Tl are taken from the literature to compute the thermal stability parameters Trg = Tg /Tl, Tx /Tl, delta(Tx) = Tx - Tg and gamma = Tx/(Tg + Tl). Comparison of the atomic structures with reported amorphous thickness and thermal stability parameters gives the following major results. Binary glasses show a strong preference for solute-to-solvent atomic radius ratios, R, that produce efficient local atomic packing, consistent with earlier results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2009
- Accession Number
- ADA501734
Entities
People
- Akihisa Inoue
- Daniel B. Miracle
- Dmitri Louzguine-luzgin
- Larissa Louzguina-luzgina
Organizations
- Air Force Research Laboratory