Manufacture of Nano-Sized Particle-Reinforced Metal Matrix Composites: A Review

Abstract

Compared to the micro-sized particle-reinforced metal matrix composites, the nano-sized particle-reinforced metal matrix composites possess superior strength, ductility, and wear resistance, and they also exhibit good elevated temperature properties. Therefore, the nano-sized particle-reinforced metal matrix composites are the new potential material which could be applied in many industry fields. At present, the nano-sized particle-reinforced metal matrix composites could be manufactured by many methods. Different kinds of metals, predominantly Al, Mg, and Cu, have been employed for the production of composites reinforced by nano-sized ceramic particles such as carbides, nitrides, and oxides. The main drawbacks of these synthesis methods are the agglomeration of the nano-sized particles and the poor interface between the particles and the metal matrix. This work is aimed at reviewing the ex situ and in situ manufacturing techniques. Moreover, the distinction between the two methods is discussed in some detail. It was agreed that the in situ manufacturing technique is a promising method to fabricate the nano-sized particle-reinforced metal matrix composites.

Effects of particulate agglomerated degree on deformation behaviors and mechanical properties of in-situ ZrB2 nanoparticles reinforced AA6016 matrix composites by finite element modeling

“…Notably, a remarkable shortcoming, that is, the agglomeration of particle reinforcements which is characterized by the clustered regions distributing around the grain or phase boundaries, has constrained the optimal coupling of strength and plasticity of Al alloy matrix composites. In the past few years, direct melting reaction (DMR) which is a typical in situ processing method has been devoted to modify the distribution of particles in matrix and to suppress the agglomerations [5][6][7]. Nevertheless, the agglomeration of particles is still a challenge [8].…”

Microstructure evolution and mechanical properties of friction stir processed TiC/7085Al nanocomposites

“…However, the reinforced nanoparticles tend to be clustered and agglomerated in the matrix due to their high specific surface energy. These cluster and agglomeration of the nanocomposites in the matrix would decrease the mechanical performance of the nanocomposite [12][13][14][15].…”

Microstructure evolution and mechanical properties of SiC nanoparticles reinforced magnesium matrix composite processed by cyclic closed-die forging

“…Recent studies indicate that decreasing the particle sizes improves the mechanical properties of metal matrix composites (MMCs) [6]. It is found that nano-sized reinforcements enhance the mechanical properties more effectively than the micron-sized ones [7]. A variety of techniques for fabricating nano-composites are developed, such as high energy milling [8], ball milling [9] and nano-sintering [10].…”