Additive Manufacturing of Textured FePrCuB Permanent Magnets

被引：13

作者：

Goll, Dagmar ^{[1
]}

Trauter, Felix ^{[1
]}

Loeffler, Ralf ^{[1
]}

Gross, Thomas ^{[1
]}

Schneider, Gerhard ^{[1
]}

机构：

[1] Aalen Univ, Mat Res Inst, D-73430 Aalen, Germany

来源：

MICROMACHINES | 2021年 / 12卷 / 09期

关键词：

additive manufacturing; PrFeCuB; selective laser melting (SLM); laser powder bed fusion (L-PBF); coercivity; book-mold-cast magnets; permanent magnets; tailored microstructure; PR-FE; RARE-EARTH; CAST; COERCIVITY; MICROSTRUCTURE;

D O I：

10.3390/mi12091056

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Permanent magnets based on FePrCuB were realized on a laboratory scale through additive manufacturing (laser powder bed fusion, L-PBF) and book mold casting (reference). A well-adjusted two-stage heat treatment of the as-cast/as-printed FePrCuB alloys produces hard magnetic properties without the need for subsequent powder metallurgical processing. This resulted in a coercivity of 0.67 T, remanence of 0.67 T and maximum energy density of 69.8 kJ/m(3) for the printed parts. While the annealed book-mold-cast FePrCuB alloys are easy-plane permanent magnets (BMC magnet), the printed magnets are characterized by a distinct, predominantly directional microstructure that originated from the AM process and was further refined during heat treatment. Due to the higher degree of texturing, the L-PBF magnet has a 26% higher remanence compared to the identically annealed BMC magnet of the same composition.

引用

页数：15

共 30 条

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