<p>The influence of heat treatment on the mechanical properties of 5Tip/VW94M composites was investigated. The results indicate that the optimal T6 heat treatment process is 530&#xa0;°C × 12&#xa0;h + 210&#xa0;°C × 112&#xa0;h. Under these conditions, the morphology and distribution of the LPSO phase and RE-rich phase can be significantly altered. After solution treatment, the coarse and brittle LPSO phase distributed along the grain boundaries dissolves into the <i>α</i>-Mg matrix. High-temperature solution treatment promotes the atomic inter-diffusion between Ti particles and the magnesium matrix, forming a stronger and denser metallurgical bonding interface. As a result, the interface bonding is significantly improved, and the plasticity is enhanced. In the peak-aging state, a high-density nanoscale precipitate phase Mg₇Gd precipitates in the matrix, leading to a significant increase in the strength and hardness of the composite. The peak hardness reaches 136 HV, and the peak tensile strength reaches 313&#xa0;MPa. The composite exhibits the most excellent wear resistance, with a wear loss of only 2.1&#xa0;mg. By optimizing the heat treatment process, the interface structure and matrix precipitation behavior of the 5Tip/VW94M composite can be effectively regulated, thereby achieving the synergistic optimization of its mechanical properties.</p>