On the effect of microalloying on the mechanical properties of metallic glasses

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Publication Details

Output type: Journal article

Author list: Gendelman O, Joy A, Mishra P, Procaccia I, Samwer K

Publisher: Elsevier

Publication year: 2014

Journal: Acta Materialia (1359-6454)

Volume number: 63

Start page: 209

End page: 215

Number of pages: 7

ISSN: 1359-6454

eISSN: 1873-2453

Languages: English-Great Britain (EN-GB)

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Open access status: green

Full text URL: https://arxiv.org/pdf/1309.4998

Abstract

"Microalloying", which refers to the addition of small concentrations of a foreign metal to a given metallic glass, has been used extensively in recent years in attempts to improve the mechanical properties of these glasses. The results are haphazard and nonsystematic. In this paper we provide a microscopic theory of the effect of microalloying, exposing the delicate consequences of this procedure and the large parameter space which needs to be controlled. In particular we consider two very similar models which exhibit opposite trends for the change of the shear modulus, and explain the origins of this difference as displayed in the various microscopic structures and properties. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Keywords

Amorphous solids, Mechanical properties, Metallic glasses, Microalloying, Shear modulus

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