COMPOSITION AND TEMPERING OF FE-C AND FE-NI-C FINE PARTICLES PREPAREDBY SPARK EROSION

Authors
KOCOVA M PIZUROVA N SULLOW S SCHNEEWEISS O
Citation
M. Kocova et al., COMPOSITION AND TEMPERING OF FE-C AND FE-NI-C FINE PARTICLES PREPAREDBY SPARK EROSION, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 190(1-2), 1995, pp. 259-265
Citations number
39
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
190
Issue
1-2
Year of publication
1995
Pages
259 - 265
Database
ISI
SICI code
0921-5093(1995)190:1-2<259:CATOFA>2.0.ZU;2-1
Abstract
Fe-C and Fe-Ni-C powders prepared by spark synthesis from pure Fe, Fe- Ni and C as electrodes were investigated. They exhibit a wide variety of particles differing in form, size and phase composition. The as-pre pared powders consist of graphite, carbides, alpha- and gamma-Fe, non- magnetic phases and a new ferromagnetic component. Carbides dominate a mong the ferromagnetic phases. The fractions exhibiting superparamagne tic behaviour contain fine Fe and Fe-C particles in graphite. Changes in the phase composition due to tempering at elevated temperatures lea d to the Fe-C equilibrium.