CRYSTALLIZATION CHARACTERISTICS OF VITROVAC-4040 (FE39NI39MO4SI6B12)
DSpace at IIT Bombay
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Title |
CRYSTALLIZATION CHARACTERISTICS OF VITROVAC-4040 (FE39NI39MO4SI6B12)
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Creator |
RAJA, VS
RANGANATHAN, S |
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Subject |
si-b alloys
metallic glasses fe kinetics stability behavior fe80b20 |
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Description |
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.
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Publisher |
CARL HANSER VERLAG
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Date |
2011-07-19T12:37:20Z
2011-12-26T12:51:12Z 2011-12-27T05:37:43Z 2011-07-19T12:37:20Z 2011-12-26T12:51:12Z 2011-12-27T05:37:43Z 1991 |
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Type |
Article
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Identifier |
ZEITSCHRIFT FUR METALLKUNDE, 82(12), 907-912
0044-3093 http://dspace.library.iitb.ac.in/xmlui/handle/10054/5302 http://hdl.handle.net/10054/5302 |
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Language |
en
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