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Article | REF: N2720 V1

Mechanical properties of metallic glasses

Authors: Yannick CHAMPION, Marc BLÉTRY

Publication date: October 10, 2009, Review date: October 1, 2020

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1. Structure of metallic glasses and origin of plastic deformation

The formation and production methods of metallic glasses are described in detail in [M 50] (see [Doc. N 2 720] ). Among the best-known methods, melt spinning, or wheel quenching, involves forming a ribbon of thickness varying from 10 to 100 micrometers, by continuous deposition of a flow of liquid material on a rotating metal wheel. This technique achieves a cooling rate of around 10 6 K · s –1 . There are variants where the alloy is cast between two rotating wheels yielding sheets 500 micrometers thick with cooling rates of several hundred K/s. Alloys with a high glass forming ability (GFA) can be...

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Structure of metallic glasses and origin of plastic deformation
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