CORROSION AND HYDROGEN ABSORPTION IN MELT-SPUN NDFEB-TIC BONDED MAGNETS

Authors
ARENAS M WARREN GW LI CP DENNIS KW MCCALLUM RW
Citation
M. Arenas et al., CORROSION AND HYDROGEN ABSORPTION IN MELT-SPUN NDFEB-TIC BONDED MAGNETS, IEEE transactions on magnetics, 33(5), 1997, pp. 3901-3903
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
33
Issue
5
Year of publication
1997
Part
2
Pages
3901 - 3903
Database
ISI
SICI code
0018-9464(1997)33:5<3901:CAHAIM>2.0.ZU;2-7
Abstract
The corrosion behavior of bonded NdFeB permanent magnet materials prod uced by melt spinning with and without TiC additions has been investig ated, Typical anodic polarization experiments in 0.9 M Na2SO4 showed t hat the addition of 6 a/o TIC resulted in lower corrosion currents and reduced iron dissolution at fixed potential. The role of hydrogen was also investigated by means of galvanostatic charging and discharging experiments (hydrogen absorption and desorption) in 6M KOH which showe d that the addition of TIC resulted in a reduction of absorbed hydroge n.