Dispersion of Al-Si Alloy Structure by Intensive Pulsed Electron Beam

• Autorzy: Konovalov S. , Gromov V. , Zaguliyaev D. , Ivanov Y. , Semin A. , Rubannikova J.

Identyfikatory

DOI

10.24425/afe.2019.127120

• Języki publikacji: EN

Abstrakty

EN

By the method of modern physical material science (optic microscopy scanning and transmission electron microscopy) the analysis of structural phase states, the morphology of the second phase inclusions and defect substructure of Al-Si alloy (silumin) of hypoeutectic composition, subjected to electron beam processing was done with the following parameters: energy density 25-35 J/cm2, beam length 150 μs, pulse number – 3, pulse repetition rate – 0.3 Hz, pressure of residual gas (argon) 0.02 Pa. The surface irradiation results in the melting of the surface layer, the dissolution of boundary inclusions, the stricture formation of high speed cellular crystallization of submicron sizes, the repeated precipitation of the second phase nanodimentional particles. With the increased distance from the irradiation surface the layer containing the second phase inclusions of quasi-equilibrium shape along with the crystallization cells was revealed. It is indicative of the processes of Al-Si alloy structure globalization on electron beam processing.

Słowa kluczowe

EN

silumin; structure Al-Si; electron beam processing; crystallization cells; dispersion

PL

silumin; struktura Al-Si; obróbka wiązką elektronową; krystalizacja; dyspersja

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 2
• Strony: 79--84
• Opis fizyczny: Bibliogr. 36 poz., fot., rys., tab., wykr.

Twórcy

autor

Konovalov S.

• Wenzhou University, China
• Samara National Research University, Russia

autor

Gromov V.

• Siberian State Industrial University, Russia

autor

Zaguliyaev D.

• Siberian State Industrial University, Russia

autor

Ivanov Y.

• Institute of High Current Electronics SB RAS, Russia

autor

Semin A.

• Siberian State Industrial University, Russia

autor

Rubannikova J.

• Siberian State Industrial University, Russia

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)