Structure and properties changes of Al-Si alloy treated by pulsed electron beam

Dmitry Zagulyaev, Sergey Konovalov, Victor Gromov, Alexander Glezer, Yurii Ivanov, Roman Sundeev

Результат исследований: Материалы для журналаСтатья

18 Цитирования (Scopus)

Выдержка

Using up-to-date methods of material studies, it is revealed that the structure of as cast Al-Si alloy (silumin) is multi-phased and morphologically heterogeneous. It consists of solid solution grains and eutectic Al-Si with a diverse morphology. With the help of selective etching intermetallic compounds (AlNiCu and AlMg) are detected on the grain boundaries of α-solid solution. Treatment of silumin samples by the intense pulsed electron beam with the diverse density results in release of the second phase sub-micro and nano-dimensional particles. According to experiments optimal energy densities of the electron beam are 25, 30 and 35 J/sm2. Silumin irradiation results in a manyfold advance of mechanical and tribological properties of the surface layers. As found out, these characteristics of the surface layers change significantly due to the sub-micro and nano-dimensional structure of cellular crystallization formed by the electron beam, which is free of primary inclusions consisting of silicon and intermetallic compounds.

Язык оригиналаАнглийский
Страницы (с-по)377-380
Число страниц4
ЖурналMaterials Letters
Том229
DOI
СостояниеОпубликовано - 15 окт 2018

Отпечаток

Electron beams
electron beams
Intermetallics
intermetallics
Solid solutions
surface layers
Silicon Compounds
solid solutions
Silicon compounds
silicon compounds
Crystallization
eutectics
Eutectics
casts
Etching
Grain boundaries
grain boundaries
flux density
etching
Irradiation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Цитировать

Structure and properties changes of Al-Si alloy treated by pulsed electron beam. / Zagulyaev, Dmitry; Konovalov, Sergey; Gromov, Victor; Glezer, Alexander; Ivanov, Yurii; Sundeev, Roman.

В: Materials Letters, Том 229, 15.10.2018, стр. 377-380.

Результат исследований: Материалы для журналаСтатья

Zagulyaev, D, Konovalov, S, Gromov, V, Glezer, A, Ivanov, Y & Sundeev, R 2018, 'Structure and properties changes of Al-Si alloy treated by pulsed electron beam', Materials Letters, том. 229, стр. 377-380. https://doi.org/10.1016/j.matlet.2018.07.064
Zagulyaev, Dmitry ; Konovalov, Sergey ; Gromov, Victor ; Glezer, Alexander ; Ivanov, Yurii ; Sundeev, Roman. / Structure and properties changes of Al-Si alloy treated by pulsed electron beam. В: Materials Letters. 2018 ; Том 229. стр. 377-380.
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abstract = "Using up-to-date methods of material studies, it is revealed that the structure of as cast Al-Si alloy (silumin) is multi-phased and morphologically heterogeneous. It consists of solid solution grains and eutectic Al-Si with a diverse morphology. With the help of selective etching intermetallic compounds (AlNiCu and AlMg) are detected on the grain boundaries of α-solid solution. Treatment of silumin samples by the intense pulsed electron beam with the diverse density results in release of the second phase sub-micro and nano-dimensional particles. According to experiments optimal energy densities of the electron beam are 25, 30 and 35 J/sm2. Silumin irradiation results in a manyfold advance of mechanical and tribological properties of the surface layers. As found out, these characteristics of the surface layers change significantly due to the sub-micro and nano-dimensional structure of cellular crystallization formed by the electron beam, which is free of primary inclusions consisting of silicon and intermetallic compounds.",
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AU - Konovalov, Sergey

AU - Gromov, Victor

AU - Glezer, Alexander

AU - Ivanov, Yurii

AU - Sundeev, Roman

PY - 2018/10/15

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N2 - Using up-to-date methods of material studies, it is revealed that the structure of as cast Al-Si alloy (silumin) is multi-phased and morphologically heterogeneous. It consists of solid solution grains and eutectic Al-Si with a diverse morphology. With the help of selective etching intermetallic compounds (AlNiCu and AlMg) are detected on the grain boundaries of α-solid solution. Treatment of silumin samples by the intense pulsed electron beam with the diverse density results in release of the second phase sub-micro and nano-dimensional particles. According to experiments optimal energy densities of the electron beam are 25, 30 and 35 J/sm2. Silumin irradiation results in a manyfold advance of mechanical and tribological properties of the surface layers. As found out, these characteristics of the surface layers change significantly due to the sub-micro and nano-dimensional structure of cellular crystallization formed by the electron beam, which is free of primary inclusions consisting of silicon and intermetallic compounds.

AB - Using up-to-date methods of material studies, it is revealed that the structure of as cast Al-Si alloy (silumin) is multi-phased and morphologically heterogeneous. It consists of solid solution grains and eutectic Al-Si with a diverse morphology. With the help of selective etching intermetallic compounds (AlNiCu and AlMg) are detected on the grain boundaries of α-solid solution. Treatment of silumin samples by the intense pulsed electron beam with the diverse density results in release of the second phase sub-micro and nano-dimensional particles. According to experiments optimal energy densities of the electron beam are 25, 30 and 35 J/sm2. Silumin irradiation results in a manyfold advance of mechanical and tribological properties of the surface layers. As found out, these characteristics of the surface layers change significantly due to the sub-micro and nano-dimensional structure of cellular crystallization formed by the electron beam, which is free of primary inclusions consisting of silicon and intermetallic compounds.

KW - Electron microscopy

KW - Metals and alloys

KW - Multilayer structure

KW - Pulsed electron beam

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