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Overview of In situ X-ray studies of light alloy solidification in microgravity

  • Gravity has significant effects on alloy solidification, primarily due to thermosolutal convection and solid phase buoyancy. Since 2004, the European Space Agency has been supporting investigation of these effects by promoting in situ X-ray monitoring of the solidification of aluminium alloys on microgravity platforms, on earth, and in periodically varying g conditions. The first microgravity experiment-investigating foaming of liquid metals - was performed on board a sounding rocket, in 2008. In 2012 the first ever X-ray-monitored solidification of a fully dense metallic alloy in space was achieved: the focus was columnar solidification of an Al-Cu alloy. This was followed in 2015 by a similar experiment, investigating equiaxed solidification. Ground reference experiments were completed in all cases. In addition, experiments have been performed on board parabolic flights-where the effects of varying gravity have been studied. We review here the technical and scientific progress toGravity has significant effects on alloy solidification, primarily due to thermosolutal convection and solid phase buoyancy. Since 2004, the European Space Agency has been supporting investigation of these effects by promoting in situ X-ray monitoring of the solidification of aluminium alloys on microgravity platforms, on earth, and in periodically varying g conditions. The first microgravity experiment-investigating foaming of liquid metals - was performed on board a sounding rocket, in 2008. In 2012 the first ever X-ray-monitored solidification of a fully dense metallic alloy in space was achieved: the focus was columnar solidification of an Al-Cu alloy. This was followed in 2015 by a similar experiment, investigating equiaxed solidification. Ground reference experiments were completed in all cases. In addition, experiments have been performed on board parabolic flights-where the effects of varying gravity have been studied. We review here the technical and scientific progress to date, and outline future perspectives.zeige mehrzeige weniger

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Metadaten
Autor*innen:D. Browne, F. García-Moreno, H. Nguyen-Thi, G. Zimmermann, F. Kargl, R. H. Mathiesen, Axel GriescheORCiD, O. Minster
Persönliche Herausgeber*innen:K. N. Solanki, D. Orlov, A. Singh, N. R. Neelameggham
Dokumenttyp:Buchkapitel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Magnesium Technology 2017
Jahr der Erstveröffentlichung:2017
Verlag:Springer
Verlagsort:Berlin, Heidelberg
Erste Seite:581
Letzte Seite:590
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik
Freie Schlagwörter:Columnar and equiaxed structures; Dendritic growth; Materials in space
DOI:10.1007/978-3-319-52392-7_80
ISSN:2367-1181
ISBN:978-3-319-52392-7
ISBN:978-3-319-52391-0
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:22.03.2017
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:27.07.2017
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