Modification of the sample's surface of hypereutectic silumin by pulsed electron beam

M. E. Rygina, Yu F. Ivanov, A. P. Lasconev, A. D. Teresov, N. N. Cherenda, V. V. Uglov, E. A. Petricova, M. V. Astashinskay

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The article presents the results of the analysis of the elemental and phase composition, defect substructures. It demonstrates strength and tribological characteristics of the aluminium-silicon alloy of the hypereutectic composition in the cast state and after irradiation with a high-intensity pulsed electron beam of a submillisecond exposure duration (a Solo installation, Institute of High Current Electrons of the Siberian Branch of the Russian Academy of Sciences). The research has been conducted using optical and scanning electron microscopy, and the X-ray phase analysis. Mechanical properties have been characterized by microhardness, tribological properties - by wear resistance and the friction coefficient value. Irradiation of silumin with the high-intensity pulsed electron beam has led to the modification of the surface layer up to 1000 microns thick. The surface layer with the thickness of up to 100 microns is characterized by melting of all phases present in the alloy; subsequent highspeed crystallization leads to the formation of a submicro- and nanocrystalline structure in this layer. The hardness of the modified layer decreases with the increasing distance from the surface exposure. The hardness of the surface layer is more than twice the hardness of cast silumin. Durability of silumin treated with a high intensity electron beam is ≈ 1, 2 times as much as the wear resistance of the cast material.

Original languageEnglish
Article number012138
JournalIOP Conference Series: Materials Science and Engineering
Volume124
Issue number1
DOIs
Publication statusPublished - 2 Jun 2016
Externally publishedYes
EventInternational Conference on Mechanical Engineering, Automation and Control Systems 2015, MEACS 2015 - Tomsk, Russian Federation
Duration: 1 Dec 20154 Dec 2015

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Electron beams
Hardness
Wear resistance
Irradiation
Silicon alloys
Crystallization
Phase composition
Microhardness
Aluminum alloys
Melting
Durability
Friction
X rays
Mechanical properties
Defects
Scanning electron microscopy
Electrons
Chemical analysis

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Cite this

Modification of the sample's surface of hypereutectic silumin by pulsed electron beam. / Rygina, M. E.; Ivanov, Yu F.; Lasconev, A. P.; Teresov, A. D.; Cherenda, N. N.; Uglov, V. V.; Petricova, E. A.; Astashinskay, M. V.

In: IOP Conference Series: Materials Science and Engineering, Vol. 124, No. 1, 012138, 02.06.2016.

Research output: Contribution to journalArticle

Rygina, M. E. ; Ivanov, Yu F. ; Lasconev, A. P. ; Teresov, A. D. ; Cherenda, N. N. ; Uglov, V. V. ; Petricova, E. A. ; Astashinskay, M. V. / Modification of the sample's surface of hypereutectic silumin by pulsed electron beam. In: IOP Conference Series: Materials Science and Engineering. 2016 ; Vol. 124, No. 1.
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