Elimination of the non-recrystallised regions in the extruded MnAl-C-Ni magnet using pulverised melt-spun ribbons

Feng L, Freudenberger J, Nielsch K, Woodcock TG (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Journal of Alloys and Compounds Elsevier

Book Volume: 897

Article Number: 163248

DOI: 10.1016/j.jallcom.2021.163248

Abstract

MnAl-C-Ni magnets with maximum energy products, (BH)max ≥ 42 kJ m⁻³, were produced by hot extruding pulverised melt-spun ribbons. The small diameter of the columnar grains in the as-spun ribbons (1 µm ≤ d ≤ 6 µm), restricted the maximum size of the τ-phase grains, which formed during the holding process at 700 °C before the extrusion. The absence of non-recrystallised regions in the extruded material made from ribbons produced at high wheel speed was attributed to this smaller initial τ-phase grain size (1 µm ≤ d ≤ 2 µm) and resulted in an enhancement of the squareness factor of the demagnetisation curve.

Involved external institutions

Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden

Germany (DE)

How to cite

APA:

Feng, L., Freudenberger, J., Nielsch, K., & Woodcock, T.G. (2022). Elimination of the non-recrystallised regions in the extruded MnAl-C-Ni magnet using pulverised melt-spun ribbons. Journal of Alloys and Compounds, 897. https://doi.org/10.1016/j.jallcom.2021.163248

MLA:

Feng, Le, et al. "Elimination of the non-recrystallised regions in the extruded MnAl-C-Ni magnet using pulverised melt-spun ribbons." Journal of Alloys and Compounds 897 (2022).

BibTeX: Download