Journal Article10.1179/095066010X12646898728200
An assessment of binary metallic glasses: correlations between structure, glass forming ability and stability
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TL;DR: In this paper, the influence of atomic structure on glass forming ability and thermal stability in binary metallic glasses was explored. But the authors focused on the properties of binary metallic glass and did not consider the effects of the atomic structure of the glass.
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Abstract: This manuscript explores the influence of atomic structure on glass forming ability and thermal stability in binary metallic glasses. A critical assessment gives literature data for 628 alloys from 175 binary glass systems. The atomic structure is quantified for each alloy using the efficient cluster packing model. Comparison of atomic structure with amorphous thickness and thermal stability gives the following major results. Binary glasses show a strong preference for discrete solute to solvent atomic radius ratios R*, which give efficient local atomic packing. Of 15 possible R* values, only five are common and only four represent the most stable glasses. The most stable binary glasses are also typically solute rich, with enough solute atoms to fill all the solute sites and roughly one-third of the solvent sites. This suggests that antisite defects, where solutes occupy solvent atom sites, are important in the glass forming ability of the most stable glasses. This stabilising effect resul...
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References
Some aspects of splat-quenching in an inert atmosphere and of the formation of non-crystalline phases in Al-17.3 at. % Cu, germanium and tellurium
H. A. Davies,J. B. Hull +1 more
TL;DR: In this paper, an apparatus for splat-quenching by the gun technique in a sealed, inert atmosphere is described, with particular reference to the atomized droplet size and the effective specimen thickness for heat transfer.
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Local atomic structure of Pd-Ni-P bulk metallic glass examined by high-resolution electron microscopy and electron diffraction
TL;DR: In this article, the authors used a reverse Monte Carlo (RMC) simulation method to develop a realistic structure model consisting of a dense-random-packing structure, in which an fcc ordered region with Pd, Ni, and P atoms was embedded.
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Pd-Si binary bulk metallic glass
TL;DR: In this paper, a combination of fluxing and water quenching or air cooling was used to obtain large glass forming ability of Pd-Si binary alloys, which can be greatly improved by fluxing treatment.
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Change in corrosion behavior of amorphous NiP alloys by alloying with chromium, molybdenum or tungsten
TL;DR: In this article, an attempt was made to improve the corrosion resistance of amorphous nickel-based alloys by the addition of chromium, molybdenum or tungsten.
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