Isothermal section of the Ho-Co-Fe system at 773 K

被引：7
作者：
He, Wei [1 ]
Zhao, Yunhong [1 ]
Zhang, Yongzhi [1 ]
Yu, Meihua [1 ]
Zeng, Lingmin [1 ]
机构：
[1] Guangxi Univ, Minist Educ, Key Lab Nonferrous Met Mat & New Proc Technol, Coll Mat Sci & Engn, Nanning 530004, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 03期
关键词：
Phase diagram; Ho-Co-Fe system; Rare earth alloy; X-ray diffraction; SB TERNARY-SYSTEM; PHASE-DIAGRAM; BINARY-SYSTEM; EQUILIBRIUM; GD; DY;
D O I：
10.1016/j.jallcom.2010.09.121
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：
The 773 K isothermal section of the phase diagram of the Ho-Co-Fe ternary system was investigated by using X-ray diffraction technique, metallographic analysis and scanning electron microscopy with energy dispersive analysis. The isothermal section of the ternary system consists of 6 three-phase regions, 16 two-phase regions and 11 single-phase regions. Three pairs of corresponding compounds of Ho-Co and Ho-Fe systems, i.e., Ho(2)Co(17) and Ho(2)Fe(17), HoCo(3) and HoFe(3), HoCo(2) and HoFe(2), form a continuous series of solid solution. At 773 K the compound Ho(6)Fe(23-x)Co(x) was found to have a wide homogeneity range from 0 to 29 at.% Co. The maximum solid solubilities of Fe in Co, Ho(2)Co(7), Ho(12)Co(7) and Ho(3)Co were determined to be about 10, 9, 2 and 5 at.% Fe, respectively. The maximum solid solubility of Co in Fe is found to be 78 at.% Co. (C) 2010 Elsevier B.V. All rights reserved.
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页码：632 / 635
页数：4
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