MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Crystalline Texture in (Nd,Dy)-(Fe,Co)-B Melt Spun Ribbons
Kang AnJifan HuHongwei QinJuan ChenBo LiXiaojun YuYizhong WangZhenxi Wang
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2003 Volume 44 Issue 11 Pages 2258-2261

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Abstract

In the present paper, the crystalline orientation in melt spun (Nd,Dy)-(Fe,Co)-B ribbons was investigated. The average ribbon thicknesses for Nd15Fe77B8, Nd15Fe75Co2B8 and Nd14DyFe75Co2B8 at V=1 m/s are 300, 380 and 420 μm, respectively. The thickness of (Nd,Dy)-(Fe,Co)-B ribbons decreases with increasing roller speed. There is a certain roller speed V of about 8 m/s, where c-axis preferential orientation of grains on both roller and free surfaces for Nd15Fe77B8 ribbon is pronounced. Compared with Nd15Fe77B8, the addition of Co improves the c-axis orientation of both roller and free surfaces for the Nd15Fe75Co2B8 ribbon at V=1 m/s. With an increase of roller speed (V<20 m/s) for Nd15Fe75Co2B8 ribbons, the c-axis orientation behavior enhances for the free surface but reduces for the roller surface. The addition of Dy in Nd15Fe75Co2B8 at V=5 m/s enhances the c-axis behavior strongly on free surface, but lowers it on roller surface.

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© 2003 The Japan Institute of Metals and Materials
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