TiC nanoparticle addition to enhance the mechanical response of hybrid magnesium alloy

Abstract

A hybrid magnesium alloy nanocomposite containing TiC nanoparticle reinforcement was fabricated using solidification processing followed by hot extrusion. The nanocomposite exhibited similar grain size to the monolithic hybrid alloy, reasonable TiC nanoparticle distribution, nondominant (0 0 0 2) texture in the longitudinal direction, and 16 higher hardness than the monolithic hybrid alloy. Compared to the monolithic hybrid alloy, the nanocomposite simultaneously exhibited higher tensile yield strength (0.2 TYS), ultimate tensile strength (UTS), failure strain, and work of fracture (WOF) (+14, +7, +81, and +92, resp.). Compared to the monolithic hybrid alloy, the nanocomposite exhibited lower compressive yield strength (0.2 CYS) and higher ultimate compressive strength (UCS), failure strain, and WOF (11, +7, +4, and +15, resp.). The advantageous effects of TiC nanoparticle addition on the enhancement of tensile and compressive properties of the hybrid magnesium alloy are investigated in this paper. © 2012 Muralidharan Paramsothy et al.