Characterization of TiB2 reinforced aluminum matrix composite synthesized by in situ stir casting method

  • Fereshteh Barragh Jam Department of Chemical Engineering, Faculty of Engineering, University of Maragheh, Maragheh https://orcid.org/0000-0002-7855-3241
  • Hadi Bangi Houri Department of Materials and Metallurgical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran (Pers73hadi@gmail.com)
  • Morteza Ferdosi Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Iran https://orcid.org/0000-0003-4556-1912
Keywords: In situ, Composite, TiB2, Wear resistance, Stir casting

Abstract

In this study, TiB2 reinforced Al-matrix composite was fabricated by in situ stir casting route, and the effect of processing parameters was investigated. X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) equipped with energy-dispersive X-ray spectroscopy (EDX) were used to study the composition and microstructure of the samples. Finally, to investigate the tribological and electrochemical behavior of the samples, wear tests (pin-on-disk) and potentiodynamic polarization tests (PDP) were used, respectively. Results showed that by increasing stirring time, both tribological and mechanical behavior of the samples improved. Also, it was found that by increasing the stirring speed of the melt to 180 rpm, the mechanical and tribological behavior of the samples improved, and by further increasing the stirring speed to 300 rpm, they were decreased. Consequently, samples containing lower than 7 wt. % TiB2 showed better metallurgical properties, due to lack of agglomeration.

 

Graphical Abstract
Published
2020-12-22
How to Cite
Barragh Jam, F., Bangi Houri, H., & Ferdosi, M. (2020). Characterization of TiB2 reinforced aluminum matrix composite synthesized by in situ stir casting method. Journal of Composites and Compounds, 2(5), 163-170. https://doi.org/10.29252/jcc.2.4.1
Section
Articles