The Application of Centrifugal Atomization Method for Preparation of Rapidly Solidified Nd-Fe-B Flakes Used for Production of Permanent Magnets

被引：1
|
作者：
Bruncko, Mihael [1 ]
Erman, Ziga [2 ]
Kirbis, Peter [1 ,3 ]
Anzel, Ivan [1 ]
机构：
[1] Univ Maribor, Fac Mech Engn, Maribor, Slovenia
[2] Magneti Ljubljana Dd, Ljubljana, Slovenia
[3] SIJ Met Ravne doo, Ravne Na Koros, Slovenia
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2018年 / 27卷 / 10期
关键词：
centrifugal atomization; magnets; microscopy; microstructure characterization; optical metallography; rapid solidification; rare earths; COOLING RATE; NDFEB;
D O I：
10.1007/s11665-018-3564-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nd-Fe-B-type permanent magnets are used in applications that require a high-energy product/volume ratio in order to reduce weight. Automotive industry, hard drives, or wind turbines are just examples of an application where their use can be found. Conventional casting techniques reveal the formation of a high quantity of -Fe and large Nd-rich regions. On the other hand, new techniques, like strip casting, melt-spinning and centrifugal atomization, produce homogeneous and fine-scaled microstructures. This paper discusses the application of rapid solidification by means of the centrifugal atomization method for preparation of Nd-Fe-B flakes. The effect of alloy composition and various process parameters of centrifugal atomization on the microstructure of rapidly solidified Nd-Fe-B alloy were investigated. The microstructures and the phase composition were examined by metallographic techniques, namely optical and scanning electron microscopy. Additionally, the influence of the processing parameters on the microstructures of as-cast flakes and subsequent magnetic properties of the prepared magnets will be discussed.
引用
收藏
页码：5136 / 5140
页数：5
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