Phase equilibria in the Dy-Fe-Nd system at 500°C

被引：0
|
作者：
Zeng, LM [1 ]
He, W [1 ]
Zhuang, YH [1 ]
机构：
[1] Guangxi Univ, Inst Mat Sci, Nanning 530004, Guangxi, Peoples R China
来源：
ZEITSCHRIFT FUR METALLKUNDE | 1998年 / 89卷 / 04期
关键词：
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The Dy-Fe-Nd phase diagram at 500 degrees C was determined with the use of powder X-ray diffraction (XRD), electron probe microanalysis (EPMA), metallography and DTA. The 500 degrees C isothermal section of this ternary system consists of 10 single-phase regions, 17 two-phase regions and 8 three-phase regions. No ternary compounds have been found. At 500 degrees C the maximum solid solubilities of Nd in DyFe3 and DyFe2 and that of Fe in alpha-Nd(Dy) are about 1 at.%, 3 at.% and 0.1 at.%, respectively. The existence of the metastable phase NdFe2 and delta phase of the Dy-Nd binary system are confirmed, but no evidence of the existence of Nd3Dy2 was found. The metastable phase NdFe2 appears in the phase regions which include the stable phase DyFe2 but was not found in the alloys near the composition of NdFe2.
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页码：286 / 288
页数：3
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