Effect of Composition and Structure on the Properties of Ti Containing Nd-Fe-B Rapidly Quenched Alloys

Author

Leonowicz, Marcin K. ; Spyra, Marzena ; Michalski, Bartosz ; Kaszuwara, Waldemar ; Derewnicka, Daniela

Author_Institution

Fac. of Mater. Sci. & Eng., Warsaw Univ. of Technol., Warsaw, Poland

Volume

48

Issue

11

fYear

2012

Firstpage

3150

Lastpage

3153

Abstract

The effect of neodymium and boron content was studied for the Nd_7+xFe_79-x+y-zB_14-yTi_z (x=0, 1, 2; y=0, 1, 2; z=0, 4) system. The alloys were prepared by melt-spinning and suction casting. The highest magnetic properties (_JH_c=648 kA/m, J_r=972 mT, (BH)_max=143 kJ/m³ ) were achieved for the melt-spun Nd₈Fe₇₄B₁₄Ti₄ alloy. This was caused by Ti addition and was related to the convenient combination of the phase constitution and fine crystallite size in the range of 15-30 nm.

Keywords

alloying additions; boron alloys; casting; crystallites; ferromagnetic materials; iron alloys; magnetisation; melt spinning; neodymium alloys; titanium alloys; Nd_7+xFe_79-x+y-zB_14-yTi_z; alloying addition; boron composition effect; crystallite size; ferromagnetic materials; magnetic properties; magnetisation; melt spinning; neodymium composition effect; rapidly-quenched alloys; structure; suction casting; Coercive force; Magnetic domain walls; Magnetic domains; Magnetic hysteresis; Magnetic properties; Neodymium; Nanocomposite magnets; Nd-Fe-B melt-spun alloys; permanent magnets;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2012.2204233

Filename

6332592