Magnesium-based nanocomposites: A review from mechanical, creep and fatigue properties

•Mechanical, corrosion behavior, biocompatibility and antibacterial activity of Mg-based metal matrix nanocomposites (MMNCs) are presented.•Different fabrication processes and post-processes treatments for MMNCs are reviewed and summarized.•Strengthening models and mechanisms for MMNCs have been proposed.•The latest development of MMNCs for biomedical and industrial applications is presented.•Creep and fatigue behavior of MMNCs using both traditional and depth-sensing indentation techniques are presented. The addition of nanoscale additions to magnesium (Mg) based alloys can boost mechanical characteristics without noticeably decreasing ductility. Since Mg is the lightest structural material, the Mg-based nanocomposites (NCs) with improved mechanical properties are appealing materials for lightweight structural applications. In contrast to conventional Mg-based composites, the incorporation of nano-sized reinforcing particles noticeably boosts the strength of Mg-based nanocomposites without significantly reducing the formability. The present article reviews Mg-based metal matrix nanocomposites (MMNCs) with metallic and ceramic additions, fabricated via both solid-based (sintering and powder metallurgy) and liquid-based (disintegrated melt deposition) technologies. It also reviews strengthening models and mechanisms that have been proposed to explain the improved mechanical characteristics of Mg-based alloys and nanocomposites. Further, synergistic strengthening mechanisms in Mg matrix nanocomposites and the dominant equations for quantitatively predicting mechanical properties are provided. Furthermore, this study offers an overview of the creep and fatigue behavior of Mg-based alloys and nanocomposites using both traditional (uniaxial) and depth-sensing indentation techniques. The potential applications of magnesium-based alloys and nanocomposites are also surveyed.