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Effect of quenching rate on the properties of melt-spun FeNbCuSIB ribbons
A.K. Panda, S. Roy, S.R. Singh, V. Rao, S. Pramanik, I. Chattoraj, , P. Ramachandrarao
Published in
2001
Volume: 304-306
   
Issue: 1-2
Pages: 457 - 461
Abstract
Amorphous ribbons of composition technique. A convergent nozzle of suitable dimensions was chosen so as to minimise the turbulent flow of the fluid. The separation between the nozzle and the quenching wheel surface was kept constant at 0.5 mm. The quenching rate was directly proportional to the wheel velocity as the dimension of the crucible and the position of crucible with respect to wheel surface were kept fixed in all the trials. The thickness of ribbon was found to decrease while the ductility increased with the increase of wheel surface velocity, i.e. with the increase of quenching rate. The amorphous to nanocrystalline transformation temperature was found to remain constant when the wheel surface velocity was more than 32 m/s and also the soft magnetic properties were found to be superior. © 2001 Elsevier Science B.V. All rights reserved.
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Figures & Tables (9)
  • Figure-0
    Fig. 1. Sketch of the crucible used for melt-spinning.
  • Figure-1
    Fig. 2. TEM micrograph of as melt-spun Fe–Nb–Cu–Si–B alloy. ... Expand
  • Figure-2
    Table 1 Fracture strain of ribbons prepared at different ... Expand
  • Figure-3
    Fig. 3. Effect of wheel velocity on thickness of ribbon, ... Expand
  • Figure-4
    Table 2 Magnetic properties of melt-spun ribbons
  • Figure-5
    Fig. 4. DSC curves of Alloy I, prepared at different wheel ... Expand
  • Figure-6
    Fig. 5. Effect of wheel velocity on the onset temperature ... Expand
  • Figure-7
    Fig. 6. TEM micrograph of Alloy I, annealed at 773 K, showing ... Expand
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About the journal
JournalMaterials Science and Engineering A
ISSN09215093