| Autor: |
Smirnov, O. M., Rud, O. D., Fikssen, V. N., Skorobagatko, Yu. P., Monastyrska, T. O., Goryuk, M. S., Semenko, A. Yu., Yashchenko, O. V. |
| Předmět: |
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| Zdroj: |
Metallophysics & Advanced Technologies / Metallofizika i Novejsie Tehnologii; Sep2023, Vol. 45 Issue 9, p1125-1139, 15p |
| Abstrakt: |
Among many aluminium alloys, high-strength casting 'aluminium--copper' alloys are ones of the main structural materials in aircraft construction. According to the results of the latest research by specialists from different countries of the world, these alloys also have a perspective for application at manufacturing of parts (hulls and pistons) of engines for the aviation and automotive equipment. However, presence of toxic (cadmium) or expensive (silver) components in the composition of such alloys as strengthening additives limits significantly the potential of their industrial production and practical application. We propose using the energy of electromagnetic fields and magnetohydrodynamic (MHD) effects to process the alloy in liquid state. Implementation of such actions takes place in specialized casting magnetodynamic installation. The developed MHD processing of melts ensures refining of the structure and increasing main mechanical properties of aluminium alloys in the solid state. Actually, it is some kind of physical modifying without reagents. Regarding high-strength casting 'aluminium--copper' alloys, their MHD-processing in the liquid state in a foundry magnetodynamic installation allows to ensure quite high level of strength and plasticity even without application of strengthening additives. At the same time, the standard-compliant level of the main technological properties (mainly fluidity and hot cracking susceptibility) is ensured. This indicates the possibility of obtaining thin-walled parts of complicated geometry from such alloys by casting methods. Further research will be focused on improving the mechanical and operational properties of experimental 'aluminium--copper' alloys due to the introduction of non-toxic and relatively cheap strengthening and modifying additives. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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