Elastic modulus in magnesium matrix composites

Under the background of global climate change and carbon neutrality for sustainable development, advanced materials that combine lightweight properties with high strength and modulus are crucial for diminishing energy usage and carbon emissions within the fields of transportation and aerospace. Magnesium alloys stand out as promising options, given their low density and superior specific strength. The elastic moduli of Mg alloys can be significantly improved through the incorporation of high-modulus reinforcements, which is essential for enhancing materials performance and reducing environment impact. This work reviews the international and domestic advancements in magnesium matrix composites involving the elastic modulus over the past several decades, encompassing the prediction models for elastic modulus and their applications, the liquid fabrication process, and the influence of various reinforcement types on the composite's elastic modulus. Finally, this review forecasts the future trends in the development of high-modulus magnesium matrix composites, with the intention of offering theoretical insights and experimental references for research, development, and utilization of the materials that are lightweight, high-strength, and high-modulus.