As solidified microstructure investigation of Mg15Y and MgxYyGd (x+y=15 wt.%) ternary alloys

Publikation: Beiträge in SammelwerkenAufsätze in KonferenzbändenForschungbegutachtet

Authors

  • G. Szakács
  • C. L. Mendis
  • D. Tolnai
  • M. Vlcek
  • F. Lukác
  • I. Stulíková
  • B. Smola
  • M. Wolff
  • R. Schmid-Fetzer
  • N. Schell
  • K. U. Kainer
  • N. Hort

MgxYyGd (x+y=15 wt.%) alloys were produced via permanent mould casting to investigate the microstructure evolution during solidification of the ternary system. The microstructure of the as-solidified samples was characterized with scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In situ synchrotron radiation diffraction experiments were performed during the solidification of the alloys at the P07 (HEMS) Beamline of PETRA III at DESY. The phase evolution observed during controlled cooling at 20 and 100 K/min and the resultant microstructures were compared with the as-cast conditions. The experimental results were correlated with the calculations from the Pandat thermodynamic software. In the case of the ternary alloys the equilibrium phase diagram suggests the formation of the Mg24Y5 phase at elevated temperatures followed by the formation of the Mg5Gd phase at eutectic temperatures. However, the experiment shows only the formation of Mg24Y5 phase at eutectic temperatures even with a cooling rate (CR) of 100 K/min.

OriginalspracheEnglisch
TitelMagnesium Technology 2016 - Held During TMS 2016 : 145th Annual Meeting and Exhibition
HerausgeberAlok Singh, Kiran Solanki, Michele Viola Manuel, Neale R. Neelameggham
Anzahl der Seiten5
VerlagThe Minerals, Metals & Materials Society
Erscheinungsdatum2016
Seiten23-27
ISBN (elektronisch)9781119225805
DOIs
PublikationsstatusErschienen - 2016
Extern publiziertJa
Veranstaltung145th Annual Meeting and Exhibition of Magnesium Technology - TMS 2016 - Nashville, USA / Vereinigte Staaten
Dauer: 14.02.201618.02.2016
Konferenznummer: 145

DOI

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