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Materials 2018, 11(9), 1637; https://doi.org/10.3390/ma11091637

Phase Formation during Solidification of Mg-Nd-Zn Alloys: An In Situ Synchrotron Radiation Diffraction Study

1
Institute of Materials Research, Helmholtz-Zentrum Geesthacht, Max-Planck-Strasse 1, D 21502 Geesthacht, Germany
2
Brunel Centre for Advanced Solidification Technology, Brunel University London, London UB8 3PH, UK
3
Institute of Materials Science, Joining and Forming, Graz University of Technology, Graz A8010, Austria
*
Author to whom correspondence should be addressed.
Received: 17 August 2018 / Revised: 29 August 2018 / Accepted: 4 September 2018 / Published: 6 September 2018
(This article belongs to the Section Materials Physics)
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Abstract

Mg-4Nd base alloys with Zn additions of 3, 5 and 8 wt % were investigated with in situ synchrotron radiation diffraction during solidification. This method enabled the investigation of phase formation and transformation in the alloys. The diffraction results were supported with TEM observations on the as-solidified samples. The results show the effect of increased Zn addition on stabilizing the Mg3RE phase (RE—rare earth). The experimental results agree only partially with the theoretical calculations indicating the need to improve the existing thermodynamic database on the alloy system. View Full-Text
Keywords: magnesium; Mg-Nd-Zn alloys; in situ solidification; synchrotron radiation diffraction magnesium; Mg-Nd-Zn alloys; in situ solidification; synchrotron radiation diffraction
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Tolnai, D.; Subroto, T.; Gavras, S.; Buzolin, R.; Stark, A.; Schell, N.; Hort, N. Phase Formation during Solidification of Mg-Nd-Zn Alloys: An In Situ Synchrotron Radiation Diffraction Study. Materials 2018, 11, 1637.

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