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

被引：6
|
作者：
Tolnai, Domonkos [1 ]
Subroto, Tungky [1 ,2 ]
Gavras, Serge [1 ]
Buzolin, Ricardo [1 ,3 ]
Stark, Andreas [1 ]
Schell, Norbert [1 ]
Hort, Norbert [1 ]
机构：
[1] Helmholtz Zentrum Geesthacht, Inst Mat Res, Max Planck Str 1, D-21502 Geesthacht, Germany
[2] Brunel Univ London, Brunel Ctr Adv Solidificat Technol, London UB8 3PH, England
[3] Graz Univ Technol, Inst Mat Sci Joining & Forming, A-A8010 Graz, Austria
来源：
MATERIALS | 2018年 / 11卷 / 09期
关键词：
magnesium; Mg-Nd-Zn alloys; in situ solidification; synchrotron radiation diffraction; MECHANICAL-PROPERTIES; MAGNESIUM ALLOYS; RARE-EARTH; ZK60; ALLOY; MICROSTRUCTURE; ELEMENTS; SYSTEM; CE;
D O I：
10.3390/ma11091637
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
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页数：10
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