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Journal of Materials Science

, Volume 54, Issue 5, pp 4400–4408 | Cite as

The role of Cu content on structure and magnetic properties of Fe–Si–B–P–Cu nanocrystalline alloys

  • Xingjie Jia
  • Yanhui Li
  • Licheng Wu
  • Yan Zhang
  • Lei Xie
  • Wei Zhang
Metals
  • 31 Downloads

Abstract

The increase in Cu content from 1.0 to 1.7 at.% changes the as-spun Fe86-xSi2B8P4Cux and Fe84-yMn2Si2B8P4Cuy alloys from a single amorphous phase to a composite of α-Fe nanoparticles dispersing in amorphous matrix and significantly refines the nanostructure and improves the magnetic softness of the annealed alloys. The as-spun Fe82.3Mn2Si2B8P4Cu1.7 amorphous alloy containing high number density α-Fe nanoparticles forms uniform nanostructure with fine α-Fe grains in an average size of 17 nm after annealing and exhibits low coercivity of 8.4 A m−1 and high effective permeability of 15000 at 1 kHz, which are superior to those of 38 nm, 85.4 A m−1 and 1400, respectively, for the Fe83Mn2Si2B8P4Cu1 amorphous alloy. The mechanism relating to the effect of Cu content on the grain refinement was discussed in terms of the as-spun structure and crystallization process of the alloys.

Notes

Acknowledgements

This research was supported by the National Natural Science Foundation of China [Grant Nos. 51571047, 51771039] and the Fundamental Research Funds for the Central Universities [DUT17ZD212].

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province), School of Materials Science and EngineeringDalian University of TechnologyDalianChina
  2. 2.Institute for Materials ResearchTohoku UniversitySendaiJapan

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