Vladimir State University named after Alexander and Nikolay Stoletovs, Vladimir, Russia:

E. S. Prusov, Associate Professor, Department of Functional and Constructional Materials Technology, e-mail: eprusov@mail.ru

S. M. Arakelian, Professor, Head of the Department of Physics and Applied Mathematics, e-mail: arak@vlsu.ru

Wuhan Textile University, Wuhan, China¹ ; National University of Science and Technolоgy “MISiS”, Moscow, Russia²
V. B. Deev^*, Professor, Professor of the School of Mechanical Engineering and Automation¹, Chief Researcher of the Laboratory “Ultrafine-Grained Metallic Materials”², e-mail: deev.vb@mail.ru

National University of Science and Technolоgy “MISiS”, Moscow, Russia:
P. K. Shurkin, Engineer of the Department of Metal Forming, e-mail: pa.shurkin@yandex.ru

*Corresponding author

Thermodynamic assessment of the influence of alloying elements (Si, Cu, Mg, Ni, Mn, and Zn) on the phase formation in cast aluminum matrix composites Al/B₄C is carried out. It is shown that doping with silicon promotes the primary crystallization of Al8C7Si phase, the region of existence of which expands with an increase in the silicon content. In the range of 700–900 ^oC, the addition of silicon slightly changes the B₄C fraction. The effect of copper is manifested in decrease in the solidus temperature and the solid-phase formation of Al₂Cu. Doping with magnesium changes the phase composition, contributing to the additional formation of the AlB₂ phase and free carbon in the four-phase region AlB₂ + B₄C + (Al) + C. The direct effect of zinc is recorded at its concentration of more than 0.7 wt.%, at which a solid solution (Zn) is formed in the solid state. The influence of manganese is fixed in solid-phase transformations; in the range of manganese concentrations up to 1 wt.%, crystallization ends in the Al₁₂Mn + (Al) + B₄C phase region. Nickel addition works similarly; crystallization of alloys containing up to 1 wt.% Ni ends in the phase region Al₃Ni + (Al) + B₄C.

The reported study was funded by RFBR and ROSATOM, project number 20-21-00038.

1. Mortensen A., Llorca J. Metal Matrix Composites. Annual Review of Materials Research. 2010. Vol. 40, Iss. 1. pp. 243–270.
2. Priyaranjan Samal, Pandu R. Vundavilli, Arabinda Meher, Manas M. Mahapatra. Recent Progress in Aluminum Metal Matrix Composites: a Review on Processing, Mechanical and Wear Properties. Journal of Manufacturing Processes. 2020. Vol. 59. pp. 131–152.
3. Prusov E., Deev V., Rakhuba E. Aluminum Matrix in-Situ Composites Reinforced with Mg₂Si and Al₃Ti. Materials Today: Proceedings. 2019. Vol. 11, Pt. 1. pp. 386–391.
4. Zhang P., Li Y., Wang W., Gao Z., Wang B. The Design, Fabrication and Properties of B₄C/Al Neutron Absorbers. Journal of Nuclear Materials. 2013. Vol. 437, Iss. 1-3. pp. 350–358.
5. Lin J., Ran G., Lei P., Ye C., Huang S., Zhao S., Li N. Microstructure Analysis of Neutron Absorber Al/B₄C Metal Matrix Composites. Metals. 2017. Vol. 7, Iss. 12. 567.
6. Lai J., Zhang Z., Chen X.-G. Effect of Sc and Zr Alloying on Microstructure and Precipitation Evolution of as Cast Al – B4C Metal Matrix Composites. Materials Science and Technology. 2012. Vol. 28, Iss. 11. pp. 1276–1286.
7. Lee D., Kim J., Park B., Jo I., Lee S.-K., Kim Y., Lee S.-B., Cho S. Mechanical and Thermal Neutron Absorbing Properties of B₄C/Aluminum Alloy Composites Fabricated by Stir Casting and Hot Rolling Process. Metals. 2021. Vol. 11, Iss. 3. 413.
8. Shirvanimoghaddam K., Khayyam H., Abdizadeh H., Karbalaei Akbari M., Pakseresht A.H., Ghasali E., Naebe M. Boron Carbide Reinforced Aluminium Matrix Composite: Physical, Mechanical Characterization and Mathematical Modelling. Materials Science and Engineering: A. 2016. Vol. 658. pp. 135–149.
9. Nirala A., Soren S., Kumar N., Kaushal D. R. A comprehensive review on mechanical properties of Al–B4C stir casting fabricated composite. Materials Today: Proceedings. 2020. Vol. 21. pp. 1432–1435.
10. Canute X., Majumder M. C. Investigation of Tribological and Mechanical Properties of Aluminium Boron Carbide Composites Using Response Surface Methodology and Desirability Analysis. Industrial Lubrication and Tribology. 2018. Vol. 70, Iss. 2. pp. 301–315.

11. Vaidya R. U., Song S. G., Zurek A. K. Dynamic Mechanical Response and Thermal Expansion of Ceramic Particle Reinforced Aluminium 6061 Matrix Composites. Philosophical Magazine: A. 1994. Vol. 70. pp. 819–836.
12. Shorowordi K., Laoui T., Haseeb A., Celis J.-P., Froyen L. Microstructure and Interface Characteristics of B4C, SiC and Al2O3 Reinforced Al Matrix Composites: a Comparative Study. Journal of Materials Processing Technology. 2003. Vol. 142, Iss. 3. pp. 738–743.

13. Kouzelli M., Marchi C. S., Mortensen A. Effect of Reaction on the Tensile Behaviour of Infiltrated Boron Carbide Aluminium Composites. Material Science and Engineering: A. 2002. Vol. 337, Iss. 1-2. pp. 264–273.
14. Previtali B., Pocci D., Tacacardo C. Application of Traditional Investment Casting Process to Aluminium Matrix Composites. Composites Part A: Applied Science and Manufacturing. 2008. Vol. 39. pp. 1606–1617.
15. Shabani O. M., Mazahery A. Modeling of the Wear Behaviour in A356–B4C Composites. Journal of Materials Science. 2011. Vol. 46, Iss. 20. pp. 6700–6708.
16. Chervyakova K. Yu., Samoshina M. E., Belov N. A. Selection of an Aluminum Matrix Composition for Obtaining the Heat Treatable Boron-Aluminum Alloys. Non-Ferrous Metals. 2016. No. 2. pp. 34–40. DOI: 10.17580/nfm.2016.12.07
17. Chervyakova K. Y., Belov N. A., Samoshina M. E., Yakovlev A. A. Investigation into the Possibility of Fabricating Boraluminum Rolling of Increased Strength without Homogenization and Quenching. Russian Journal of Non-Ferrous Metals. 2018. Vol. 59, Iss. 4. pp. 412–418.
18. Kurbatkina E. I., Belov N. A., Gorshenkov M. V. Structure and Phase Composition of Composite Pellets Based on the Altek Heat-Resistance Aluminum Alloy With Boron-Containing Filler. Russian Journal of Non-Ferrous Metals. 2014. Vol. 55, Iss. 2. pp. 182–185.
19. Ibrahim M. F., Ammar H. R., Samuel A. M., Soliman M. S., Samuel F. H. Metallurgical Parameters Controlling Matrix/ B4C Particulate Interaction in Aluminium–Boron Carbide Metal Matrix Composites. International Journal of Cast Metals Research. 2013. Vol. 26, Iss. 6. pp. 364–373.