Nucleation and structuring in aluminum and in ALSi12Cu2NiMg alloy with nanopaticle modifier under impact of electron-beam treatment
R. Lazarova1, G.E. Georgiev1, A.N. Cherepanov2, V. Dyakova1
1Institute of Metal Science, Equipment and Technologies with Hydro- and
Aerodynamics Centre. "Acad. A. Balevki" – Bulgarian Academy of Sciences, Sofia, Bulgaria
2Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Keywords: electron-beam treatment, nanoparticles, modifier, crystal structure
Abstract
The paper presents experimental and theoretical study of crystal nucleation and growth in aluminum and structure development in the aluminum melt after the introduction of a cubic-shaped nanoparticle modifier and using the electron-beam surface treatment method. The output of this study is the rate of solid phase nucleation as a function of TiCN nanoparticle size dispersed in molten aluminum. The numerical simulation of crystal structure growth for a sample of AlSi12Cu2NiMg alloy treated by electron beam was performed using the MAGMASOFT computer code.
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