Influence of Microstructural Characteristics on Wear and Corrosion Behaviour of Si3N4-Reinforced Al2219 Composites

Abstract

The fabrication of the Al2219 + Si3N4 composites was done by means of stir casting process. The specimen was subjected to microstructural studies. The density of Si3N4 employed in the fabrication of the composites has been evaluated. Generally, the density of the composites increases as the weight percent of Si3N4 increases. TGA and DTA were performed at temperatures ranging from 30°C to 800°C, with some mass loss noted as well as the thermal stability of an AA2219 matrix improved. Under various parameters of applied load, operating duration, and speed, the wear behaviour of the produced aluminium matrix composite (AMC) was examined. Corrosion behaviour was examined using potentiodynamic polarization curve data, and it was discovered that the rate of corrosion decreases with increasing Si3N4 content, adding to the AA2219 matrix. The research work is intended to produce a totally new composite material with various compositions of reinforcement and to investigate their mechanical properties and a result of simulation.

A Review on Abrasive Wear of Aluminum Composites: Mechanisms and Influencing Factors

“…As can be seen in Figure 8, they also reported abrasive wear for the composite and adhesion for the matrix alloy. In another study on AA2219/Si 3 N 4 composites with 3 Wt.%, 6 Wt.%, and 9 Wt.% of reinforcement, it was shown that the addition of 6 Wt.% of Si 3 N 4 to the alloy exhibited optimum wear behavior at all applied loads and velocities [80]. Similar trends in wear rate results were also reported by Manjunatha et al [78].…”

Synthesis, characterization, and mechanical properties of Al–Zn–Mg alloy-based hybrid metal matrix composites reinforced with Si3N4/TiB2 particles processed through stir casting technique

“…In comparison to the SiC reinforced composite, the TiB 2 reinforced composite demonstrated superior mechanical and tribological properties. 36 In separate studies, Manjunatha et al 37 and Subramanian et al 38 investigated the tribological characteristics of Si 3 N 4 -aluminum composites. They observed that the rate of wear and corrosion decreased with an increasing weight percentage of Si 3 N 4 in the aluminum matrix.…”