Search

Aluminium (Al) matrix composites are widely used in the automotive and aerospace sectors due to their low density, high specific strength, and excellent tribological performance. Although wear studies on Al matrix composites started approximately 40 years ago, they still continue to attract. This review reports the latest developments on the wear performance of up-to-date Al matrix composites. For this reason, the effect of different factors such as applied load, sliding speed, sliding distance, temperature, particle content, and particle size on tribological performance was investigated, considering the coefficient of friction and wear rate. Dominant wear mechanisms depending on wear parameters were also evaluated. Consequently, the review provides the challenges and future research directions in the tribology of Al matrix composites. © The Indian Institute of Metals - IIM 2024.

This study reviews the recent developments in the corrosion performance of Mg matrix composites. The mechanical and tribological performance of Mg is significantly enhanced by the production of Mg matrix composites. However, the corrosion performance of Mg matrix composites can be negatively affected by adding reinforcement particles, especially in aqueous environments. Therefore, it is necessary to know the corrosion rates of Mg matrix composites. While this review reports the results of different corrosion tests such as potentiodynamic polarisation, electrochemical impedance spectroscopy, immersion and hydrogen evolution, it also discusses the reasons for the increase/decrease of corrosion performance of the Mg matrix composites. This review also reports challenges and future recommendations for Mg matrix composites. © 2024 Canadian Institute of Mining, Metallurgy and Petroleum.

Magnesium (Mg), with a density of two-thirds of aluminium (Al) and one-fourth of steel, has become one of the most attractive materials for automotive and aerospace industries owing to the obligation to reduce fuel consumption and gas emissions. However, the poor mechanical property of Mg is one of the most significant barriers to its widespread use. The most widely used method to increase the use potential of Mg is the development of Mg matrix composites. This review focuses on the mechanical properties of recent Mg matrix composites. The effect of different reinforcement materials on the mechanical behaviour and failure mechanisms of Mg matrix composites was evaluated in detail. © The Author(s) 2024.