INTECIN 20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
artículos
Título:
Effects of air annealing on Fe-Si-B-M-Cu (M=Nb, Mo) alloys
Autor/es:
SILVEYRA JOSEFINA M; ILLEKOVÁ EMÍLIA
Revista:
JOURNAL OF ALLOYS AND COMPOUNDS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 610 p. 180 - 183
ISSN:
0925-8388
Resumen:
Previous works have shown that Nb protects Finemet (Fe73.5Si13.5B9Nb3Cu1) againstoxidation. Still, the material must be annealed in a controlled atmosphere to inducenanocrystallization, otherwise, the oxide layer that is formed, deteriorates the soft magneticproperties of the material. Since Nb may be replaced by Mo in Finemet without a significantchange in its structure and performance, we studied the effect of the exchange on the oxidation resistance of the alloy. We found that replacing Nb by Mo enhanced oxidation resistance. While Nb-alloys permeability was 41.3 % smaller when nanocrystallized in air than in vacuum, Mo-alloys permeability only decreased by 8.5 %. Air annealing would simplify the manufacturing process of Finemet products.
