Abstract:

In this study, the microstructure density and hardness properties of carbon nanotube (CNT) powders reinforced with AlMg powder by mechanical alloying method under different production conditions and different sintering conditions were investigated by using powder metallurgy technique. These powders in different proportions produced, cold isostatic prestressed cylindrical composite samples were obtained under a pressure of 40 MPa. The obtained pellets were sintered at different temperatures (350 °C, 400 °C, 450 °C) for 2 hours under high vacuum (1.2 10-5 mbar). The microstructure and mechanical properties of the AlMg/CNT metal matrix composite were studied using different test equipment. It can be seen that the mechanical properties of the specimens produced in the studies are changed by the sintering temperature and the reinforcement % CNT. As a result, it is observed that the increased CNT ratio improves the mechanical properties especially at 2.5% CNT ratios at different sintering temperatures and at 400 °C, and it also shows that these data add a clear plus to the transition from composite to AlMg mechanical behavioral modes.

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