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Atomic dynamics in Zr-(Co,Ni)-Al metallic glass-forming liquids

Yuan, C. C. and Yang, Fan and Kargl, Florian and Holland-Moritz, Dirk and Simeoni, G. and Meyer, Andreas (2015) Atomic dynamics in Zr-(Co,Ni)-Al metallic glass-forming liquids. Physical Review B, 91 (21), p. 214203. American Physical Society. doi: 10.1103/PhysRevB.91.214203. ISSN 1098-0121.

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Abstract

The microscopic transport and the macroscopic flow behavior of Zr-(Co,Ni)-Al melts are systemically investigated using containerless processing techniques. A remarkable decrease of the Co, Ni self-diffusion coefficient and increase of the melt viscosity upon alloying Al, are observed. In contrast to many other metallic glass-forming liquids, the average packing fraction of the melt derived from the measured macroscopic density decreases. Our study indicates that chemical interactions of Al with transition metal atoms play an important role in slowing down liquid dynamics of metal melts, which also contribute to their improved glass-forming ability.

Item URL in elib:https://elib.dlr.de/104974/
Document Type:Article
Title:Atomic dynamics in Zr-(Co,Ni)-Al metallic glass-forming liquids
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Yuan, C. C.chenchen.yuan (at) dlr.deUNSPECIFIED
Yang, Fanfan.yang (at) dlr.deUNSPECIFIED
Kargl, Florianflorian.kargl (at) dlr.deUNSPECIFIED
Holland-Moritz, Dirkdirk.holland-moritz (at) dlr.deUNSPECIFIED
Simeoni, G.FRM-2, Garching, GermanyUNSPECIFIED
Meyer, Andreasandreas.meyer (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:Physical Review B
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:91
DOI :10.1103/PhysRevB.91.214203
Page Range:p. 214203
Publisher:American Physical Society
ISSN:1098-0121
Status:Published
Keywords:alloys;diffusion;Ni;melt
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Material Design and New Materials
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Scientific Experiments MP
Deposited By: Kargl, Dr Florian
Deposited On:04 Jul 2016 07:06
Last Modified:06 Sep 2019 15:29

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