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Thermal analysis of two Fe-X-B (X=Nb, ZrNi) alloys prepared by mechanical alloying

The alloys, Fe60Ni14Zr6B20 and Fe85Nb9B6, were produced by mechanical alloying. The formation of the nanocrystallites (about 40 nm) was detected by X-ray diffraction. Furthermore, a slight oxygen presence (<3 at.%) was found by induced-coupled plasma and EDX microanalysis. After milling, calorimetry scans show low temperature recovery process and several crystallization processes related with the crystal growth and reordering of the crystalline phases. The apparent activation energies, 360 and 290 kJ mol-1, were determined by the Kissinger method. A mass increase (about 1 mass%) was detected by thermogravimetry

Financial support from MICYT (project No. MAT2000-0388) and DURSI (project 2001SGR-00190)

© Journal of Thermal Analysis and Calorimetry, 2003, vol. 72, núm. 1, p. 329-335

Springer Verlag

Author: Suñol Martínez, Joan Josep
González Gasch, Àlex
Saurina i Canals, Joan
Date: 2003 June 17
Abstract: The alloys, Fe60Ni14Zr6B20 and Fe85Nb9B6, were produced by mechanical alloying. The formation of the nanocrystallites (about 40 nm) was detected by X-ray diffraction. Furthermore, a slight oxygen presence (<3 at.%) was found by induced-coupled plasma and EDX microanalysis. After milling, calorimetry scans show low temperature recovery process and several crystallization processes related with the crystal growth and reordering of the crystalline phases. The apparent activation energies, 360 and 290 kJ mol-1, were determined by the Kissinger method. A mass increase (about 1 mass%) was detected by thermogravimetry
Financial support from MICYT (project No. MAT2000-0388) and DURSI (project 2001SGR-00190)
Format: application/pdf
ISSN: 1388-6150 (versió paper)
1588-2926 (versió electrònica)
Document access: http://hdl.handle.net/10256/12742
Language: eng
Publisher: Springer Verlag
Collection: CICYT/PN 2000-2003/MAT2000-0388-C02-02
Reproducció digital del document publicat a: http://dx.doi.org/10.1023/A:1023908912033
Articles publicats (D-F)
Is part of: © Journal of Thermal Analysis and Calorimetry, 2003, vol. 72, núm. 1, p. 329-335
Rights: Tots els drets reservats
Subject: Cristal·lització
Crystallization
Aliatges
Alloys
Aliatges -- Propietats tèrmiques
Alloys -- Thermal properties
Title: Thermal analysis of two Fe-X-B (X=Nb, ZrNi) alloys prepared by mechanical alloying
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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