| Autor: |
B. R. Senthil Kumar, G. Gopalarama Subramaniyan, N. Pragadish, P. M. Venkatesh, Soni Sanjay, C. M. Velu, G. Navaneethakrishnan, Suresh Vellingiri, Venkatesan Govindarajan |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Advances in Materials Science and Engineering, Vol 2022 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1687-8442 |
| DOI: |
10.1155/2022/9594798 |
| Popis: |
The aerospace aluminium alloy AA7050 was reinforced with Al2O3 of average particle size 5 m in this study using the stir casting method. To eliminate surface imperfections, AA7050/Al2O3 composites with varied weight percentages (0, 2, 4, 6) were manufactured, and wear tests on composites were carried out utilizing a pin-on-disc apparatus that varied load, velocity, temperature, and weight %. The tensile and hardness tests were carried out at a high temperature. The inclusion of particles enhances wear resistance by establishing a mechanically mixed layer (MML), according to the findings. The wear resistance at 300°C was 100% higher in comparison with resistance at 150°C. Because of the Orowan strengthening and Hall–Petch effect, the tensile strength and hardness of composites enhanced. Temperature, tracked by the weight % of strengthening powders, was the most important factor that influences the wear resistance of the composites. The findings showed that the material properties of AA7050/4wt%Al2O3 at 150°C and AA7050/2wt%Al2O3 at 300°C are superior than base alloy. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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