INVESTIGATION OF THE INFLUENCE OF DIFFERENT MODIFIERS ON THE EUTECTIC SI IN THE COMPOSITION OF ALSI18 ALLOY

Authors

  • Ivan Panov Technical University - Sofia, Plovdiv Branch (BG)
  • Boyan Dochev Technical University of Sofia, Plovdiv Branch (BG)
  • Valentin Manolov Institute of Metal Science, Equipment, and Technologies “Acad. A. Balevski” with Center for Hydro- and Aerodynamics at the Bulgarian Academy of Sciences (BG)
  • Angel Velikov Institute of Metal Science, Equipment, and Technologies “Acad. A. Balevski” with Center for Hydro- and Aerodynamics at the Bulgarian Academy of Sciences (BG)
  • Vanya Dyakova Institute of Metal Science, Equipment, and Technologies “Acad. A. Balevski” with Center for Hydro- and Aerodynamics at the Bulgarian Academy of Sciences (BG)

DOI:

https://doi.org/10.17770/etr2021vol3.6555

Keywords:

hypereutectic aluminum-silicon alloy, modification, nanomodifiers, eutectic silicon

Abstract

The structure of hypereutectic aluminum-silicon alloys consists of primary silicon crystals arranged in a eutectic matrix. In the present work the influence of different types of modifiers on the size and shape of the silicon crystals in the composition of the eutectic of the AlSi18 alloy has been studied. The classic for this type of alloys modifier (phosphorus), as well as the nanomodifiers SiC and nanodiamonds (ND) have been used. The results of the microstructural analysis show that the three modifiers used affect differently the shape and size of the eutectic silicon of the investigated alloy.

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References

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Published

2021-06-16

How to Cite

[1]
I. Panov, B. Dochev, V. Manolov, A. Velikov, and V. Dyakova, “INVESTIGATION OF THE INFLUENCE OF DIFFERENT MODIFIERS ON THE EUTECTIC SI IN THE COMPOSITION OF ALSI18 ALLOY”, ETR, vol. 3, pp. 261–265, Jun. 2021, doi: 10.17770/etr2021vol3.6555.