| Autor: |
Smirnov, O. M., Berezina, A. L., Monastyrska, T. O., Fikssen, V. M., Yashchenko, O. V., Skorobagatko, Yu. P., Goryuk, M. S., Semenko, A. Yu., Karpukhi, E. O., Rud, O. D. |
| Předmět: |
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| Zdroj: |
Metallophysics & Advanced Technologies / Metallofizika i Novejsie Tehnologii; Jun2024, Vol. 46 Issue 6, p559-573, 15p |
| Abstrakt: |
There are studied the structure formation of the high-strength casting Cu-Al alloys. Providing high level of properties for such alloys is connected by maintaining the necessary Cu content and alloying special strengthening additives. The most effective additives are unfortunately toxic Cd or expensive Ag. It is proposed to remove such components from the composition of alloys. To provide the structure dispersion and an increasing of properties, other alloying and modifying components, in particular, Mn and Zr, should be used. There are developed the technological bases for obtaining master alloys Al-Mn and Al-Zr with applying the energy of electromagnetic fields and magnetodynamic equipment. Modes for adding made master alloys into experimental liquid high-strength casting Cu-Al alloy are worked. As result, it is provided the substantiate refining of the cast alloy structure. To provide further structural transformations and to increase the properties of the experimental alloy, as well as due to a change in its chemical composition, the modes of its heat treatment are clarified. The proposed mode is similar to T6 and includes two-stages' homogenization (annealing) under quenching in water and subsequent artificial ageing. The further development of research consists in determining the new alloying components for such alloys. These components should make a strengthening effect on the structure, promote properties' increasing, and, at the same time, are non-toxic and relatively cheap. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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