Evolution of structure-phase states of hypoeutectic silumin irradiated by intensive pulse electron beams

Victor Gromov, Sergey Konovalov, Yuriy Ivanov, Dmitrii Zaguliaev, Elizabeth Petrikova, Yuriy Serenkov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The methods of modern material physics has been applied to analyse the structural and phase states and the defect substructure of hypoeutectic silumin treated by electron beams with the parameters as follows: energy density - 10-35 J cm-2, pulse duration - 10 μs, number of pulses - 3, pulse-repetition frequency - 0.3. Irradiation of the surface causes melting of the surface layer, formation of a submicron-scale structure of high-speed cellular crystallization and the reprecipitation of particles of the second phase. On distancing from the irradiated surface there were discovered the areas with cells and eutectic lamellae Al-Si separated by layers containing the particles of Cu15Si4, Al4Cu3 the, silicon and copper. There has been made a suggestion about the nature of lamination of the material element composition.

Original languageEnglish
Article number076574
JournalMaterials Research Express
Volume6
Issue number7
DOIs
Publication statusPublished - 17 Apr 2019

Keywords

  • cellular structure
  • high-speed crystallization
  • hypoeutectic silumin
  • treatment by electron beams

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Metals and Alloys

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