Peculiarities in electrochemical hydrogenation of Nd-Fe-B-type permanent magnets

Authors
Szymura, S Rabinovich, YM Bala, H Sergeyeva, TK Lukin, AA
Citation
S. Szymura et al., Peculiarities in electrochemical hydrogenation of Nd-Fe-B-type permanent magnets, KOVOVE MAT, 39(1), 2001, pp. 55-63
Citations number
19
Categorie Soggetti
Material Science & Engineering
Journal title
KOVOVE MATERIALY-METALLIC MATERIALS
ISSN journal
0023432X → ACNP
Volume
39
Issue
1
Year of publication
2001
Pages
55 - 63
Database
ISI
SICI code
0023-432X(2001)39:1<55:PIEHON>2.0.ZU;2-D
Abstract
The effect of composition and processing parameters of sintered Nd-Fe-B-typ e permanent magnets on the parameters of hydrogen absorption and desorption were studied. The interaction of these alloys with hydrogen is strongly re lated to the alloy composition. The results show that the decrepitation of the magnets containing different alloy additions depends not only on the am ount of hydrogen absorbed but also on the form of its occurrence. The lowes t absorption of hydrogen, in comparison to that of high-strength steels, ha s been found for the Nd15Dy1Fe69.5Co5(W, Re)(1.5)Zr0.5B7.5 permanent magnet .