Structure Property Correlation of In Situ Reinforced Al–based Metal Matrix Composite via Stir Casting
Ashish Kumar Gupta, B.P. Mallik, Debdas Roy
Abstract
Abstract Aluminum-based in situ nanocomposites are synthesized by stir casting route. The powder materials used to develop the in situ reinforcement were mechanically milled so as to reduce the powder size in the nanoregime. The as-fabricated nanocomposite aluminum base 20 vol% (Al203 + Fe-aluminide) in situ reinforcement is characterized through X-ray diffraction, field emission scanning electron microscopy (FE-SEM), and energy dispersive spectroscopy analysis, yet its mechanical properties were characterized through microhardness, dry sliding wear, and shear punch test. The tormented surface of the wear out and sheared specimen, investigated through FE-SEM of the as-processed composite, elicits improved tribological and shear properties as compared with pure aluminum.