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This study has investigated the mechanical and tribological performance of epoxy composites filled with different contents of Ti3AlC2 MAX phase particles. The Ti3AlC2 particles were synthesized by the mechanical alloying of Ti, Al and C powders. The ultrasonic blending was used for preparing the mixture of Ti3AlC2 and epoxy matrix. The Vickers microhardness and pin on disc tests were carried out to investigate the mechanical and wear properties of samples, respectively. Moreover, the fracture and worn surface of the samples were analyzed by scanning electron microscopy images. Results showed that the microhardness values were increased due to increasing the content of Ti3AlC2 in the epoxy matrix. In this regard, the highest value of 39.24 Hv was achieved for composites containing 0.75 wt.% Ti3AlC2, which corresponds to the 75.4% improvement in microhardness value, compared to neat epoxy. Moreover, wear results demonstrated that the friction coefficient and wear rate values were decreased by the addition of Ti3AlC2 particles in the epoxy matrix.

Transient liquid phase bonding of AISI 304 austenitic stainless steel was carried out using a Co-based interlayer with 40 μm thickness. The effect of bonding time and solid-state homogenisation time on the microstructure and mechanical properties of samples was investigated. The results showed that isothermal solidification was completed within 30 min at a constant temperature of 1180°C. With increasing homogenisation time, at 1000°C, a more uniform distribution of alloying elements and hardness profile across the joint region was achieved. The average shear strength of homogenised samples was about 72% that of the base metal at the same heat treatment cycle.