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Creep Deformation of a Cu-Zr Nanoglass and Interface Reinforced Nanoglass-Composite Studied by Molecular Dynamics Simulations

Kalcher, Constanze ; Adjaoud, Omar ; Albe, Karsten (2021)
Creep Deformation of a Cu-Zr Nanoglass and Interface Reinforced Nanoglass-Composite Studied by Molecular Dynamics Simulations.
In: Frontiers in Materials, 2020, 7
doi: 10.26083/tuprints-00018634
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Creep Deformation of a Cu-Zr Nanoglass and Interface Reinforced Nanoglass-Composite Studied by Molecular Dynamics Simulations
Language: English
Date: 2021
Year of primary publication: 2020
Publisher: Frontiers
Journal or Publication Title: Frontiers in Materials
Volume of the journal: 7
Collation: 6 Seiten
DOI: 10.26083/tuprints-00018634
Corresponding Links:
Origin: Secondary publication via sponsored Golden Open Access
Abstract:

Using molecular dynamics simulations, we compare the creep properties of a homogeneous Cu64Zr36 metallic glass, a nanoglass with the same nominal composition, and a nanoglass-crystal composite, where the amorphous grain boundary phase has been reinforced with the high-temperature stable Cu2Zr Laves phase. While the nanoglass architecture is successful at preventing shear band formation, which typically results in a brittle failure mode at room temperature and conventional loading conditions, we find that the high fraction of glass-glass grain boundary phase therein is not beneficial to its creep properties. This can be amended by reinforcing the glass-glass interphase with a high-temperature stable crystalline substitute.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-186346
Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Materials Modelling
Date Deposited: 22 Jul 2021 07:38
Last Modified: 22 Jul 2021 07:38
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/18634
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