MICROSTRUCTURE AND MICROHARDNESS OF Al-7 ALLOY WT% BI

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 Belarus State University
  • V. M. Shilko

DOI:

https://doi.org/10.36773/1818-1112-2023-132-3-61-64

Keywords:

aluminum, bismuth, iron, silicon, grain, microstructure, microhardness

Abstract

The microstructure and microhardness of the Al–7 wt % Bi alloy crystallized at an average melt cooling rate of ~10 K/s has been studied. Bismuth and iron precipitates are mainly localized at the boundaries of aluminum grains, the average size of which is 40 μm. Bismuth particles have a spherical shape. The average value of the diameters of their cross sections is 1.5 µm. The specific surface of grain boundaries is 0.12 µm-1. The specific surface area of the aluminum-bismuth interface is 0.062 µm-1. The microhardness of the alloy is (323 ± 13) MPa and decreases monotonically during isothermal annealing at 150 °C.

Author Biographies

Viktor Ivanovich Hladkouski, Brest State Technical University

Ph.D in Physics and Mathematics, Associate Professor, Associate Professor of the Department of Physics of Brest State Technical University, Brest, Belarus.

Tatyana Leonidovna Kushner, Brest State Technical University

Ph.D in Physics and Mathematics, Associate Professor, Head of the Department of Physics, Brest State Technical University, Brest, Belarus.

Alexander Ivanovich Pinchook, Brest State Technical University

Ph.D in Physics and Mathematics, Associate Professor, Associate Professor of the Department of Physics, Brest State Technical University, Brest, Belarus.

Vasily Grigorievich Shepelevich, Belarus 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, Belarus.

V. M. Shilko

5th year student of the Faculty of Physics, Belarus State University, Minsk, Belarus.

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Published

2023-12-28

How to Cite

(1)
Hladkouski, V. I.; Kushner, T. L.; Pinchook, A. I.; Shepelevich, V. G.; Shilko, V. M. MICROSTRUCTURE AND MICROHARDNESS OF Al-7 ALLOY WT% BI. Вестник БрГТУ 2023, 61-64.

Issue

No. 3(132) (2023): Vestnik of Brest State Technical University

Section

Mechanical Engineering

License

Copyright (c) 2023 Vestnik of Brest State Technical University

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