Influence of soaking time of modifier in melt on microstructure of Al-12%Si alloys

N. V. Martyushev, V. S. Bashev, A. P. Zykova

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The influence of the soaking time of the silumin melt with a modifying nanopowder W on the microstructure and the impact toughness of the Al-12%Si silumin is studied in the paper. It was established that when introducing 0.1 mass. % of W and soaking it for 10 min, up to 30% of the inassimilable nanopowder W remains in the crucible after pouring. At that, the microstructure of castings is refined, and the impact toughness increases by 12 % compared to the initial alloy. It was established that the powder remaining in the crucible after melting consists of the remnants of metallic W, WO3 and W3O. Nanopowder W is completely assimilated by the melt if the soaking time is increased by 120 min; in this case, the impact toughness reduces, which is connected with the increase of dendrites and silicon wafers sizes.

Original languageEnglish
Article number012118
JournalIOP Conference Series: Materials Science and Engineering
Volume177
Issue number1
DOIs
Publication statusPublished - 1 Mar 2017
Event10th International Conference on Mechanical Engineering, Automation and Control Systems 2016, MEACS 2016 - Tomsk, Russian Federation
Duration: 27 Oct 201629 Oct 2016

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Fracture toughness
Crucibles
Microstructure
Silicon wafers
Powders
Melting
Castings

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Influence of soaking time of modifier in melt on microstructure of Al-12%Si alloys. / Martyushev, N. V.; Bashev, V. S.; Zykova, A. P.

In: IOP Conference Series: Materials Science and Engineering, Vol. 177, No. 1, 012118, 01.03.2017.

Research output: Contribution to journalArticle

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