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Crystallization characteristics of vitrovac 4040 (Fe39Ni39Mo4Si6B12)

Raja, Srinivasa V and Ranganathan, Srinivasa (1991) Crystallization characteristics of vitrovac 4040 (Fe39Ni39Mo4Si6B12). In: Zeitschrift für Metallkunde, 82 (12). pp. 907-912.

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Official URL: http://cat.inist.fr/?aModele=afficheN&cpsidt=51253...

Abstract

The metallic glass Vitrovac 4040 with the composition Fe39Ni39Mo4Si6B12 crystallizes in the order alpha-Fe, hexagonal Ni5Si2 and gamma-(Fe,Ni,Mo) by primary, secondary and polymorphic modes, respectively. The activation energies determined from the non-isothermal kinetics using Kissinger method turn out to be 490, 550 and 449 kJ.mol-1 for the above crystallization reactions. It has been observed that alpha transforms to gamma during annealing. Further, the bct (Fe1-xNix)3B phase has been identified when the glass is annealed above 1023 K.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Carl Hanser Verlag.
Keywords: Si-B Alloys;Metallic Glasses;Fe;Kinetics;Stability;Behavior; Fe80b20.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 10 Nov 2010 06:00
Last Modified: 10 Nov 2010 06:00
URI: http://eprints.iisc.ernet.in/id/eprint/33724

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