Background:
Friction Stir Welding (FSW) is an efficient process for solid-state joining of
two different material without melting by using a non-consumable tool. FSW process was developed
for the modification of metallic material microstructure. FSW requires a precise investigation of the
process, microstructure, and the welds mechanical properties in order to be used in the fabrication of
high- quality engineering components. Through the efforts of improving the weld's mechanical and
microstructural properties and conveying the current knowledge of the friction stir to other applications,
multiple new technologies have been developed over the time. One of the latest methods to fabricate
high performance joints or Nanocomposites alloys is the addition of nano- reinforcements to the
joint in Friction Stir Welding (FSW) or the metal matrix in Friction Stir Processing (FSP).
Objective:
In this study, an overview of effect of nanoparticles on mn this study, an overview of the effect of nanoparticles on microstructural and mechanical
properties of the FSW/ FSP joints is presented. The review revealed that the most widely employed
additions are SiC, SiO2, Al2O3, and graphite nano-powders. Microstructural evolutions, such as grain
size, second phase particles, and reinforcement distribution, usually are investigated using optical
methods and Scanning Electron Microscopy (SEM). Furthermore, the mechanical properties of the
joints, such as tensile strength, hardness, and wear performance, are also investigated. Based on most
of the researches, microstructural evolution associated with adding nanoparticles led to improve the
joints mechanical properties.icrostructural and mechanical properties of the FSW/ FSP joints is
presented. The review revealed that the most widely employed additions are SiC, SiO2, Al2O3, and graphite nano-powders.
Microstructural evolutions such as grain size, second phase particles and reinforcement distribution usually are investigated using
optical methods and scanning electron microscopy (SEM). Furthermore, the mechanical properties of the joints, such as tensile
strength, hardness, and wear performance, are also investigated Based on most of researches, microstructural evolution associated
with adding nanoparticles led to improve the joints’ mechanical properties.
Atomic force microscopy (AFM), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) of nanoscale plate-shaped second phase particles
