| Autor: |
Mahan, Hamid M., Konovalov, S. V., Shabeeb, Omran A. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 3105 Issue 1, p1-8, 8p |
| Abstrakt: |
In this paper, the effect of heat treatment on the AA2024 aluminum metal matrix on fatigue properties was studied, microstructural, hardness, and x-ray. A stir casting technique was used to fabricate the aluminums alloy AA2024. These round cylindrical rods of material were formed into cast iron mold where some samples were cooled quickly to room temperature while others were aged. The heat treatment has been performed for 3 hours at a temperature of 500°C followed by quenching in water. It was then artificially aged at 170°C for 3 hours and quenched in air. The findings of this research reveal that the fatigue strength and Vickers hardness of the aluminum alloy AA2024 were improved after heat treatment. The improvement was 30% and 50% for fatigue stress and hardness, respectively. According to the results, the gradual chilling process leads to the creation of microscopic MgZn2 segregations, whereas the rapid cooling process does not produce these types of segregations. In addition to this, it was discovered that the heat treatment operations of age hardening were able to eradicate these micro segregations and improve the mechanical properties of the AA 2024 Al alloy. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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