GRAIN STRUCTURE AND MECHANICAL PROPERTIES OF FAST-HARDNED FOILS OF Al-7 ALLOY WT.% Bi OBTAINED BY SPINNING

Authors

  • Viktor Ivanovich Hladkouski Brest State Technical University
  • Tatyana Leonidovna Kushner Brest State Technical University
  • Alexander Ivanovich Pinchook Brest State Technical University
  • Vasily Grigorievich Shepelevich Belarusian State University
  • Victor Maryanovich Shilko Belarusian State University

DOI:

https://doi.org/10.36773/1818-1112-2024-134-2-104-107

Keywords:

spinning, alloy, aluminum, bismuth, grain, microstructure, microhardness

Abstract

Traditional technologies for obtaining materials that satisfy a set of properties necessary for constantly improving structures and mechanisms have practically exhausted themselves. High-speed solidification of materials makes it possible to obtain materials with a given structure, properties and stability. Today in industry, the spinning method is predominantly used, since it is the most productive. To obtain the alloy, aluminum scrap containing up to 0.3 wt.% silicon and iron was used. The microstructure and microhardness of the Al–7 wt.% Bi alloy, crystallized by rapid quenching from the melt, is investigated. Precipitates of bismuth and iron are predominantly localized at the boundaries of aluminum grains. It has been established that the proportion of bismuth particles decreases with an increase in their diameter. During isochronous annealing in the temperature range of 100–150 °C and isothermal annealing at a temperature of 150 °C, the microhardness of the alloy decreases due to the enlargement of bismuth particles and a decrease in their dispersion contribution to the hardening of the alloy.

Author Biographies

Viktor Ivanovich Hladkouski, Brest State Technical University

Candidate of Physical and Mathematical Sciences, Associate Professor, Associate Professor of the Department of Physics, Brest State Technical University, Brest, Republic of Belarus.

Tatyana Leonidovna Kushner, Brest State Technical University

Candidate of Physical and Mathematical Sciences, Associate Professor, Head of the Department of Physics, Brest State Technical University, Brest, Republic of Belarus.

Alexander Ivanovich Pinchook, Brest State Technical University

Candidate of Physical and Mathematical Sciences, Associate Professor, Associate Professor of the Department of Physics, Brest State Technical University, Brest, Republic of Belarus.

Vasily Grigorievich Shepelevich, Belarusian State University

Doctor of Physical and Mathematical Sciences, Professor, Professor of the Department of Solid State Physics and Nanotechnologies, Faculty of Physics, Belarus State University, Minsk, Republic of Belarus.

Victor Maryanovich Shilko, Belarusian State University

Graduate of the Physics Department of the Belarusian State University, Minsk, Republic of Belarus.

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Published

2024-07-19

How to Cite

(1)
Hladkouski, V. I.; Kushner, T. L.; Pinchook, A. I.; Shepelevich, V. G.; Shilko, V. M. GRAIN STRUCTURE AND MECHANICAL PROPERTIES OF FAST-HARDNED FOILS OF Al-7 ALLOY WT.% Bi OBTAINED BY SPINNING. Вестник БрГТУ 2024, 104-107.

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