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Hartmann, H. und Reutzel, S. und Galenko, P. K. und Assadi, H. und Herlach, D. M. (2007) Non-equilibrium solidification of intermetallic compounds in the Ni-Al alloy system. TMS Annual Meeting 2007, 2007-02-25 - 2007-03-01, Orlando, FL (USA).
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Kurzfassung
Ni-Al alloy system exhibits particular solidication behavior due to chemical long-range order of the intermetallic compounds Ni<sub>3</sub>Al (L1<sub>2</sub>) and NiAl (B2). Using rapid solidication technique their slow solidication kinetics leads to the entrapment of solute atoms and/or disorder, respectively. In the present work containerless processing by applying electromagnetic levitation technique is used to analyze the aspects of dendrite growth, as observed in solidication of undercooled Ni-Al melts. Sharp-interface modeling is used to illustrate the effect of chemical order on the solidication kinetics of intermetallic phases. Both experimental results and theoretical work denote the role of chemical order in solidication of Ni-Al intermetallics.
| elib-URL des Eintrags: | https://elib.dlr.de/44614/ | ||||||||||||||||||||||||
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| Dokumentart: | Konferenzbeitrag (Poster) | ||||||||||||||||||||||||
| Titel: | Non-equilibrium solidification of intermetallic compounds in the Ni-Al alloy system | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 2007 | ||||||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | Unterkühlung von Materialien | ||||||||||||||||||||||||
| Veranstaltungstitel: | TMS Annual Meeting 2007 | ||||||||||||||||||||||||
| Veranstaltungsort: | Orlando, FL (USA) | ||||||||||||||||||||||||
| Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||
| Veranstaltungsdatum: | 2007-02-25 - 2007-03-01 | ||||||||||||||||||||||||
| Veranstalter : | The Minerals, Metals and Materials Society | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||||||
| HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||||||
| HGF - Programmthema: | W FR - Forschung unter Weltraumbedingungen (alt) | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | W FR - Forschung unter Weltraumbedingungen | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | W - Vorhaben Materialforschung unter Mikro-g (alt) | ||||||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Materialphysik im Weltraum > Institut für Raumsimulation > Zentrum für die Erstarrung unterkühlter Schmelzen (ZEUS) | ||||||||||||||||||||||||
| Hinterlegt von: | Reutzel, Dr.rer.nat. Sven | ||||||||||||||||||||||||
| Hinterlegt am: | 13 Aug 2007 | ||||||||||||||||||||||||
| Letzte Änderung: | 31 Jul 2019 19:17 |
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