Additive Manufacturing of Permanent Magnets Based on (CoCuFeZr)17Sm2,Physica Status Solidi-Rapid Research Letters

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Additive Manufacturing of Permanent Magnets Based on (CoCuFeZr)17Sm2
Physica Status Solidi-Rapid Research Letters ( IF 2.5 ) Pub Date : 2021-07-27 , DOI: 10.1002/pssr.202100294
Dagmar Goll ₁ , Felix Trauter ₁ , Philipp Braun ₁ , Judith Laukart ₁ , Ralf Loeffler ₁ , Ute Golla-Schindler ₁ , Gerhard Schneider ₁

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Lab-scale additive manufacturing of (CoCuFeZr)₁₇Sm₂-based powder is carried out to realize CoSm-printed parts with hard magnetic properties. For manufacturing a special inert gas, process chamber for laser powder bed fusion is used. A three-step annealing procedure analogous to sintered magnets is applied. This leads to a coercivity of 2.77 T, remanence of 0.78 T, and maximum energy density of 109.4 kJ m⁻³ for the printed parts. Compared with an isotropic sintered magnet of comparable composition and annealing procedure, the coercivity is of the same order. Due to the texture of the printed parts, the remanence is 24 % larger.

中文翻译：

基于 (CoCuFeZr)17Sm2 的永磁体的增材制造

对 (CoCuFeZr) ₁₇ Sm ₂基粉末进行实验室规模的增材制造，以实现具有硬磁性能的 CoSm 打印部件。为了制造特殊的惰性气体，使用了激光粉末床融合工艺室。应用类似于烧结磁体的三步退火程序。这导致打印部件的矫顽力为 2.77 T，剩磁为 0.78 T，最大能量密度为 109.4 kJ m ^-3。与具有可比成分和退火程序的各向同性烧结磁体相比，矫顽力是相同数量级的。由于打印部件的质地，剩磁要大 24%。

更新日期：2021-07-27

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