Improvement of mechanical properties of AK9 aluminum alloys through rare‑earth microadditions
https://doi.org/10.21122/1683-6065-2025-4-64-72
Abstract
The article presents research results on enhancing the mechanical properties of the cast aluminum alloy AK9 by modification with a complex modifier in the form of an Al – 8 % Sr – 10 % (La + Ce) master alloy. It has been established that the introduction of rare‑earth elements (La, Ce) and Sr contributes to the refinement of all major structural constituents, increasing hardness, tensile strength, and ductility, especially in alloys with elevated iron content. The study demonstrates that the proposed approach expands the application of secondary aluminum alloys in critical engineering components.
About the Authors
A. Т. Volochko
Physical‑Technical Institute of the National Academy of Sciences of Belarus
Belarus
Belarus
Belarus,
Minsk,
10, Kuprevicha str.
M. S. Kovalko
Physical‑Technical Institute of the National Academy of Sciences of Belarus
Belarus
Belarus
Belarus,
Minsk,
10, Kuprevicha str.
D. S. Fedorovich
Physical‑Technical Institute of the National Academy of Sciences of Belarus
Belarus
Belarus
Minsk,
Belarus,
10, Kuprevicha str.
E‑mail: dmitry48497@yandex.by
Z. Zhibo
Institute of New Materials, Guangdong Academy of Sciences
China
China
D. Song
Institute of New Materials, Guangdong Academy of Sciences
China
China
References
1. Duyunova V.A. et al. Modifitsirovanie liteynykh aliuminievikh splavov (obzor) [Modification of cast aluminum alloys (review)]. Trudy VIAM = Proceedings of VIAM, 2023, no. 4, 136 p.
2. Volochko A. T. Pererabotka i ispol’zovanie aliuminievykh otkhodov v proizvodstve poroshkov, past, kompozitsionnykh i keramicheskikh materialov [Recycling and use of aluminum waste in the production of powders, pastes, composite and ceramic materials]. Minsk, Bel. nauka Publ., 2006, 302 p.
3. Dongming Yang et al. A novel modifier Al‑Sr‑RE for improving the microstructure and mechanical properties of recycled AA3104 alloy. Journal of Alloys and Compounds, 2025, vol. 1022.
4. Volochko A. T., Sadokha M.A. Aliuminii: tekhnologii i oborudovanie dlya polucheniya litikh izdeliy [Aluminum: technologies and equipment for producing cast products]. Minsk, Bel. navuka Publ., 2011, 387 p.
5. Volochko A. T., Shegidevich A.A., Kuis D. V. Formirovanie struktury i svoistv kompozitov, poluchennykh pri obrabotke aliuminievogo rasplava ligaturami, soderzhashchimi steklopodobnye uglerodnye chastitsy [Formation of the structure and properties of composites obtained by treating aluminum melt with master alloys containing glass‑like carbon particles]. Kompozity i nanostruktury = Composites and Nanostructures, 2014, vol. 6, no. 2, pp. 2–13.
6. Volochko A. T., Korolev S. P., Galushko A. M. [et al.] Analiz strukturoobrazovaniya siluminov [Analysis of Silumin Structure Formation]. Vesti NAN Belarusi. Seriya fiziko‑tekhnicheskikh nauk = News of the National Academy of Sciences of Belarus. Series on Physical and Technical Sciences, 2013, no. 3, pp. 18–25.
7. Kuis D. V., Svidunovich N.A., Volochko A. T. [et al.] Nanomodifitsirovannyi kompozitsionnyi material na osnove aliuminiya [Nanomodified aluminum‑based composite material]. Vestnik Karagandinskogo gosudarstvennogo industrial’nogo universiteta = Bulle‑ tin of the Karaganda State Industrial University, 2013, no. 2, pp. 55–60.
8. Volochko A. T., Shegidevich A.A., Milman Yu. V. [et al.] Kompozit: aliuminievaya matritsa, armirovannaya kvazikristallicheskimi chastitsami Al–Cu–Fe, struktura i svoistva [Composite: aluminum matrix reinforced with quasicrystalline Al–Cu–Fe particles, structure and properties]. Sovremennye metody i tekhnologii sozdaniya i obrabotki materialov = Modern methods and technologies for creating and processing materials, 2014, vol. 2, pp. 426–435.
9. Volochko A. T., Shegidevich A.A. Issledovanie svoistv kompozitov na osnove aliuminii‑kremnievogo splava i nanostrukturirovannogo ugleroda [Study of the properties of composites based on aluminum‑silicon alloy and nanostructured carbon]. Novye materialy i tekhnologii v mashinostroenii = New materials and technologies in mechanical engineering, 2014, vol. 19, pp. 31–35.
10. Volochko A. T., Shegidevich A.A. Prochnost i iznosostoikost shatunov iz kompozita na osnove aliuminiya i stali [Strength and wear resistance of connecting rods made of aluminum‑steel composite]. Mekhanika mashin, mekhanizmov i materialov = Mechanics of machines, mechanisms and materials, 2014, no. 3, pp. 17–21.
11. Somov A. I., Tikhonovskiy M. L. Evtekticheskie kompozitsii [Eutectic compositions]. Moscow, Metallurgiya Publ., 1975, 304 p.
12. Volochko A. T., Izobello A. Yu., Ovchinnikov V. V. Kompleksnaya obrabotka siluminov dispersnymi chastitsami i atomarnym azotom [Complex processing of silumins with disperse particles and atomic nitrogen]. Litye i metallurgiya = Foundry production and metallurgy, 2009, no. 3, pp. 218–226.
13. Yu Liu, Zhichao Yu, Man Zhang [et al.] The Influence of the Combined Addition of La‑Ce Mixed Rare Earths and Sr on the Microstructure and Mechanical Properties of AlSi10MnMg Alloy. Metals, 2024, vol. 14.
14. Shegidevich A.A. Materialy na osnove siluminov s povyshennoi plastichnost’yu dlya izgotovleniya otvetstvennykh detalei mashinostroeniya [Silumin‑based materials with increased plasticity for the manufacture of critical mechanical engineering parts]. Moscow, 2015, 205 p.
Review
For citations:
Volochko A.Т., Kovalko M.S., Fedorovich D.S., Zhibo Z., Song D. Improvement of mechanical properties of AK9 aluminum alloys through rare‑earth microadditions. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2025;(4):64-72. (In Russ.) https://doi.org/10.21122/1683-6065-2025-4-64-72
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