Loser-free competitive model based on nash equilibrium | Научно-инновационный портал СФУ

Loser-free competitive model based on nash equilibrium

Тип публикации: статья из журнала

Год издания: 2018

Ключевые слова: nominal yield strength, relative elongation, silicon carbide, silumin AK12, tabletted ultra-finely dispersed modifier, ultimate breaking strength

Аннотация: Results are provided for a study of the structure and mechanical properties of alloy AK12 modified with tabletted ultra-finely dispersed modifier based on silicon carbide, introduced “beneath a metal stream” without additional mixing, and in a rotary device. It is established that the optimum method for introducing modifier is that of “beneath a metal stream.” In this case the ultimate breaking strength increases from 110 to 150 MPa, nominal yield strength from 85 to 94 MPa, and relative elongation from 2.3 to 6.2% (metal pouring temperature into a mold 750 °C). Metallographic examination is used to determine the reduction in macro-grain size in test pigs (ingots) by a factor of four compared with control alloys, absence of porosity, and an increase in ingot density from 2.59 to 2.66 g/cm3. Introduction of ultra-finely dispersed modifier based on silicon carbide increases the number of crystallization centers in a 1 kg ingot to 2·1011 units. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.

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Издание

Журнал: Teoriya i Praktika Fizicheskoy Kultury

Выпуск журнала: Is. 10

Номера страниц: 101-104

Авторы

  • Voynich A.L. (Siberian Federal University, Krasnoyarsk, Russian Federation)
  • Chikurov A.I. (Siberian Federal University, Krasnoyarsk, Russian Federation)
  • Shilko V.G. (Tomsk State University, Tomsk, Russian Federation)
  • Radaeva S.V. (Tomsk State University, Tomsk, Russian Federation)
  • Petrova M.V. (Siberian Federal University, Krasnoyarsk, Russian Federation)

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