Mechanical and Wear Behavior Investigation of AZ91 Magnesium Alloy-Based Surface Composites

Abstract

The study presents an in-depth investigation into the mechanical and wear behaviour of surface composites based on the AZ91 magnesium alloy. With the ever-growing demand for lightweight materials with superior mechanical properties, magnesium alloys have emerged as promising candidates across diverse industrial applications. However, their intrinsic limitations, such as low wear resistance, hinder their widespread adoption. Surface composites offer a strategic solution to address these shortcomings by enhancing the surface properties of magnesium alloys through the incorporation of rein for cement materials. The research encompasses a systematic experimental approach aimed at comprehensively evaluating the mechanical performance and wear resistance of AZ91 magnesium alloy-based surface composites. Key mechanical properties, including tensile strength, hardness, and impact resistance, are meticulously characterized to assess the effectiveness of various reinforcement materials and fabrication techniques in augmenting the overall performance of the composites. A range of reinforcement materials, such as ceramic particles, fibers, and nanoparticles, are investigated for their potential to enhance the mechanical properties of the AZ91 magnesium alloy. Additionally, diverse fabrication methods, including stir casting, powder metallurgy, and laser cladding, are explored to tailor the microstructure and distribution of reinforcement phases within the composite matrix. Furthermore, wear tests are conducted under controlled conditions to evaluate the wear resistance of the surface composites. The investigation delves into the influence of parameters such as load, sliding velocity, and environmental conditions on the tribological performance of the composites. The findings of this study contribute to a deeper understanding of the mechanical and wear behavior of AZ91 magnesium alloy-based surface composites, elucidating the intricate relationships between microstructure, reinforcement characteristics, and performance properties. These insights hold significant implications for the optimization of surface composite design and fabrication processes, paving the way for the development of lightweight materials with enhanced mechanical strength and wear resistance for diverse industrial applications, including automotive, aerospace, and biomedical engineering.