Metastable phase formation in undercooled Nd-Fe-B alloys investigated by in-situ diffraction using synchrotron radiation

被引：2
|
作者：
Strohmenger, J [1 ]
Volkmann, T
Gao, J
Herlach, DM
机构：
[1] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Raumsimulat, D-51170 Cologne, Germany
[2] NE Univ, Key Lab Electromagnet Proc Mat, Shenyang 110004, Peoples R China
来源：
SOLIDIFICATION AND GRAVITY IV | 2006年 / 508卷
关键词：
undercooling; solidification; metastable phases; electromagnetic levitation; synchrotron radiation; Nd-Fe-B;
D O I：
10.4028/www.scientific.net/MSF.508.81
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diffraction experiments on electromagnetically levitated Nd-Fe-B alloys during solidification of the undercooled melt have been performed at the European Synchrotron Radiation Facility (ESRF). By using high intensity synchrotron radiation complete diffraction spectra could be detected within a short period of some seconds thus enabling the observation of metastable solidification products that exhibits a limited lifetime. A metastable phase that crystallizes in wide composition range and that initiates the solidification of the stable Nd(2)Fe(14)B(1)-phase (phi-phase) have been observed.
引用
收藏
页码：81 / 86
页数：6
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