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Ramasamy P, Szabo A, Borzel S, et al. High pressure die casting of Fe-based metallic glass. Sci Rep. 2016;6:35258doi: 10.1038/srep35258.
Ramasamy, P., Szabo, A., Borzel, S., Eckert, J., Stoica, M., & Bárdos, A. (2016). High pressure die casting of Fe-based metallic glass. Scientific reports, 635258. https://doi.org/10.1038/srep35258
Ramasamy, Parthiban, et al. "High pressure die casting of Fe-based metallic glass." Scientific reports vol. 6 (2016): 35258. doi: https://doi.org/10.1038/srep35258
Ramasamy P, Szabo A, Borzel S, Eckert J, Stoica M, Bárdos A. High pressure die casting of Fe-based metallic glass. Sci Rep. 2016 Oct 11;6:35258. doi: 10.1038/srep35258. PMID: 27725780; PMCID: PMC5057086.
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Sci Rep. 2016 Oct 11;6:35258. doi: 10.1038/srep35258.

High pressure die casting of Fe-based metallic glass.

Scientific reports

Parthiban Ramasamy, Attila Szabo, Stefan Borzel, Jürgen Eckert, Mihai Stoica, András Bárdos

Affiliations

  1. IFW Dresden, Institute for Complex Materials, Helmholtzstr. 20, D-01069 Dresden, Germany.
  2. Breuckmann GmbH &Co KG Heiligenhaus, Germany.
  3. Budapest University of Technology and Economics, Dept. of Auto. and Vehicle Manufacturing, Stoczek str. 6, H-1111 Budapest, Hungary.
  4. TU Dresden, Institute of Materials Science, D-01062 Dresden, Germany.
  5. Politehnica University Timisoara, P-ta Victoriei 2, RO-300006 Timisoara, Romania.

PMID: 27725780 PMCID: PMC5057086 DOI: 10.1038/srep35258

Abstract

Soft ferromagnetic Fe-based bulk metallic glass key-shaped specimens with a maximum and minimum width of 25.4 and 5 mm, respectively, were successfully produced using a high pressure die casting (HPDC) method, The influence of die material, alloy temperature and flow rate on the microstructure, thermal stability and soft ferromagnetic properties has been studied. The results suggest that a steel die in which the molten metal flows at low rate and high temperature can be used to produce completely glassy samples. This can be attributed to the laminar filling of the mold and to a lower heat transfer coefficient, which avoids the skin effect in the steel mold. In addition, magnetic measurements reveal that the amorphous structure of the material is maintained throughout the key-shaped samples. Although it is difficult to control the flow and cooling rate of the molten metal in the corners of the key due to different cross sections, this can be overcome by proper tool geometry. The present results confirm that HPDC is a suitable method for the casting of Fe-based bulk glassy alloys even with complex geometries for a broad range of applications.

References

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