Mechanical Properties and Wear Performance analysis of Advance Al7075 MMCs Reinforced with Al\u2082O\u2083, TiO\u2082, and Zr\u2082O\u2083 Microparticles

Al7075 based metal matrix composites (MMCs) reinforced with Al\u2082O\u2083, TiO\u2082, and Zr\u2082O\u2083 microparticles demonstrate significant potential for high-performance structural and tribological applications. The present dataset reports a comprehensive evaluation of their mechanical properties and wear behavior under multiple loading and sliding conditions. Reinforcement additions from 0\u20134 wt.% were investigated, and the resulting values of yield strength, tensile strength, elongation, hardness, and wear rates were systematically recorded. The introduction of ceramic microparticles markedly enhanced the strength and hardness of the Al7075 matrix. Yield strength increased from 73.8 N\/mm\u00b2 for the unreinforced alloy to values exceeding 200 N\/mm\u00b2 at higher reinforcement levels, with corresponding tensile strength improvements surpassing 300 N\/mm\u00b2. Hardness values rose consistently with reinforcement content, reaching beyond 220 HV1 for optimized conditions. A gradual reduction in elongation was observed, highlighting the trade-off between ductility and strengthening.Tribological performance was assessed at normal loads of 10 N and 15 N over sliding distances of 500 m, 750 m, and 1000 m at varying rotational speeds (150, 250, 350, and 500 RPM). Wear rate results demonstrated a clear dependence on both reinforcement content and test conditions. For Al\u2082O\u2083 reinforcement, wear rates decreased steadily with increasing particle fraction, reaching as low as 2.3\u20132.8 mm\u00b3\/m \u00d710\u207b\u00b3 at 350 RPM and 10 N for 2.5\u20133 wt.% content. TiO\u2082 reinforced composites exhibited the lowest overall wear, with minimum values close to 1.7\u20132.0 mm\u00b3\/m \u00d710\u207b\u00b3 under moderate load and speed, confirming superior tribological stability. Zr\u2082O\u2083 reinforcement also produced notable improvements, particularly in reducing wear at extended sliding distances, where values remained consistently lower compared to unreinforced Al7075. Across all conditions, composites with 2\u20133 wt.% reinforcement displayed the most balanced performance, combining high strength, enhanced hardness, and minimal wear. Among the three reinforcements, TiO\u2082 showed the greatest reduction in wear, followed closely by Zr\u2082O\u2083, while Al\u2082O\u2083 offered significant strength gains. The dataset offers a complete experimental resource for researchers and engineers focusing on the design and optimization of advanced Al7075 based MMCs. The results provide critical insights into the role of micro-reinforcement type, content, and operating conditions in tailoring both mechanical and tribological responses.