Solidification behavior in undercooled Nd-Fe-B alloys

被引：17
|
作者：
Ozawa, S
Saito, T
Yu, J
Motegi, T
机构：
[1] Chiba Inst Technol, Grad Sch, Narashino, Chiba 2750016, Japan
[2] Chiba Inst Technol, Dept Engn Met, Narashino, Chiba 2750016, Japan
[3] Chiba Inst Technol, Res Inst, Narashino, Chiba 2750016, Japan
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 322卷 / 1-2期
关键词：
rare earth compounds; transition metal compounds; permanent magnets; casting; SEM;
D O I：
10.1016/S0925-8388(01)01216-6
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 solidification behavior of Nd-Fe-B undercooled melts with the stoichiometric composition of Nd,Fe,,B was studied. The melts experienced a large undercooling of 180 K during static furnace cooling. The resultant alloy ingots consisted of fragmented dendritic iron phase together with the Nd,Fe,,B phase. However, quenching the undercooled melts at various undercooling levels significantly changed the resultant microstructures. Nd-Fe-B alloy ingots with columnar Nd2Fe14B phase were obtained by quenching the melts with an undercooling of 50 K. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：276 / 280
页数：5
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