Anomalous dendrite growth in undercooled melts of Al–Ni alloys in relation to results obtained in reduced gravity
Lengsdorf, Roman and Holland-Moritz, Dirk and Herlach, Dieter, M. (2009) Anomalous dendrite growth in undercooled melts of Al–Ni alloys in relation to results obtained in reduced gravity. Scripta Materialia (10), p. 1016.
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Dendrite growth velocities are measured as a function of undercooling on Al–Ni alloys using electromagnetic levitation, both on Earth and in reduced gravity. Six alloys of various compositions are investigated, one of them for comparative investigations in reduced gravity. Whereas on the Ni-rich side, growth velocity increases with increasing undercooling, Al-rich alloys show an unusual decrease in growth velocity with increasing undercooling. Experiments in reduced gravity suggest that this anomalous behavior is caused by forced convection.
|Title:||Anomalous dendrite growth in undercooled melts of Al–Ni alloys in relation to results obtained in reduced gravity|
|Journal or Publication Title:||Scripta Materialia|
|In ISI Web of Science:||Yes|
|Page Range:||p. 1016|
|Keywords:||Dendrite growth, undercooled melts|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W FR - Forschung unter Weltraumbedingungen|
|DLR - Research area:||Space|
|DLR - Program:||W FR - Forschung unter Weltraumbedingungen|
|DLR - Research theme (Project):||W - Vorhaben Materialwissenschaftliche Forschung|
|Institutes and Institutions:||Institute of Materials Physics in Space|
|Deposited By:||Ingeborg Parpart|
|Deposited On:||25 Nov 2009 11:37|
|Last Modified:||04 Apr 2013 16:18|
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