Pecularities of nanocrystal formation in rapidly quenched (FeCo)MoCuB amorphous alloys

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Pecularities of nanocrystal formation in rapidly quenched (FeCo)MoCuB amorphous alloys (EN)

Paluga, M (EN)
Kepaptsoglou, DM (EN)
Muller, D (EN)
Svec, P (EN)
Janickovic, D (EN)
Deanko, M (EN)
Conde, CF (EN)
Hristoforou, E (EN)

conferenceItem (EN)

2014-03-01T02:44:09Z
2006 (EN)


The effect of the substitution of Fe by Co on the enhancement of glass-forming ability limits and subsequent nanocrystallization was studied in a rapidly quenched amorphous system (FexCoy) 79Mo8Cu1B12 for y/x ranging from 0 to 1. The effect of Cu on nanocrystallization was investigated by comparison with Cu-free amorphous Fe80Mo8B12. Systems partially crystallized at the surface layer were prepared for y/x = 0 using different quenching conditions. The effect of heat treatment of master alloys used for ribbon casting was also assessed. The microstructure and surface/bulk crystallization effects were analysed using transmission electron microscopy and electron and X-ray diffraction in relation to the expected enhancement of high-temperature soft magnetic properties, drastically reduced grain sizes (∼5 nm) and Co content. Unusual surface phenomena were observed, indicating the origin of possible nucleation sites for preferential crystallization in samples with low Co content. © 2006 The Authors. (EN)

Microscopy (EN)

alloy (EN)
boron derivative (EN)
magnetism (EN)
cobalt complex (EN)
X ray diffraction (EN)
high temperature (EN)
nanocrystal (EN)
conference paper (EN)
copper complex (EN)
Amorphous alloys (EN)
HITPERM (EN)
surface property (EN)
crystal structure (EN)
crystallization (EN)
Nanocrystallization (EN)
iron complex (EN)
Fe-Co alloys (EN)
priority journal (EN)
transmission electron microscopy (EN)
Rapid quenching (EN)
molybdenum (EN)

Journal of Microscopy (EN)

Αγγλική γλώσσα

BLACKWELL PUBLISHING (EN)




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