EFFECT OF Cr AS A GRAIN GROWTH INHIBITOR ON CRYSTALLIZATION KINETICS FOR Fe73.5-xCrxCu1Nb3Si13.5B9 (x = 1, 5, 10, 12.5, 17.5)

Authors

  • M M Rana Department of Physics, Mohammadpur Kendriya College, Dhaka-1207, Bangladesh
  • A Z Ziauddin Ahmed Department of Basic Sciences, Primeasia University, Dhaka-1213, Bangladesh
  • Md Sarowar Hossain Department of Physics, Faculty of Science and Technology (FST), American International University- Bangladesh (AIUB), Dhaka-1229, Bangladesh
  • M R Hassan Rooppur Nuclear Power Plant, Pabna 6620, Bangladesh
  • M H Rezvi North Carolina State University, Raleigh NC 27695, USA
  • M N I Khan Material Science Division, Atomic Energy Centre, Dhaka 1000, Bangladesh
  • S Manjura Houque Material Science Division, Atomic Energy Centre, Dhaka 1000, Bangladesh
  • M A Hakim Dept. of NCE, Bangladesh University of Engineering & Technology, Dhaka-1000, Bangladesh

DOI:

https://doi.org/10.3329/bjphy.v28i2.79345

Keywords:

Amorphous ribbon, Finemet, Nanocrystalline alloy, Metglass, Annealing

Abstract

Nanocrystalline Finemet© alloys of composition Fe73.5-xCrxCu1Nb3Si13.5B9 with x = 1, 5, 10, 12.5, 17.5 were synthesized using the melt spinning technique to study the impact of chromium (Cr) as a grain growth inhibitor on the crystallization kinetics. The alloys were studied under several heat treatments starting from the as-cast to 600℃ and the amorphousity of the ribbons is reduced as well as the nucleation of crystallizations starts. Differential Scanning Calorimetry (DSC) analysis shows that increasing Cr content shifts the crystallization temperatures to higher values, enhancing thermal stability. Moreover, the X-ray diffraction (XRD) and Field Emission Scanning Electron Microscopy (FESEM) confirmed the development of an ultra-fine α-Fe(Si) nanocrystalline phase, with the grain size decreasing as Cr content increased. The evolution of microstructure and thermal properties highlight the role of Cr content in delaying crystallization and reducing grain growth, thus improving the nanocrystalline state of the material. These findings provide insights into optimizing Fe-Si-B-based nanocrystalline alloys for advanced applications by balancing thermal treatments and Cr concentration.

Bangladesh Journal of Physics, 28(1), 59-68, June 2021

 

Downloads

Abstract
86
PDF
69

Downloads

Published

2025-01-26

How to Cite

Rana, M. M., Ahmed, A. Z. Z., Hossain, M. S., Hassan, M. R., Rezvi, M. H., Khan, M. N. I., … Hakim, M. A. (2025). EFFECT OF Cr AS A GRAIN GROWTH INHIBITOR ON CRYSTALLIZATION KINETICS FOR Fe73.5-xCrxCu1Nb3Si13.5B9 (x = 1, 5, 10, 12.5, 17.5). Bangladesh Journal of Physics, 28(2), 59–68. https://doi.org/10.3329/bjphy.v28i2.79345

Issue

Section

Articles