Investigation of the Impact of High CNT Reinforcement on the Properties of Al2024/CNT Nanocomposites


Çelebi M., Çanakçı A., Tamer F. B.

3rd International Conference on Recent Academic Studies, Konya, Türkiye, 3 - 04 Aralık 2024, ss.253-259

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Konya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.253-259
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

In this study, samples with an Al2024 matrix reinforced with 2 wt.% CNT were produced using the powder metallurgy method following mechanical milling, and the effects of CNT reinforcement on physical, microstructural, and mechanical properties were investigated. The CNT content was reinforced at 2 wt.%, and the milling duration was set to 8 hours. A Scanning Electron Microscope (SEM) equipped with Energy Dispersive Spectroscopy (EDS) was utilized for microstructural analyses. Hardness and tensile strength tests were conducted to determine the mechanical properties. The results revealed that the high CNT content led to agglomeration behavior of the reinforcements at grain boundaries. Moreover, the 2 wt.% CNT-reinforced samples exhibited inferior mechanical properties compared to the Al2024 alloy. Specifically, the hardness and tensile strength of the Al2024 alloy were measured as 105 HB and 220 MPa, respectively, while the corresponding values for the 2 wt.% CNT-reinforced composite were 95 HB and 184 MPa. Therefore, it was concluded that the high CNT content adversely affects the properties of the nanocomposite.