Research progress in experimental and integrated calculations of high modulus magnesium based materials

Abstract

Magnesium alloy is widely used in the aerospace field due to its low density，high specific strength，high damping and good thermal conductivity. However，its low elastic modulus limits its reliable application in large thin-walled components. Aiming at the problem to improve the modulus properties of magnesium-based materials，this paper briefly introduces the main factors affecting the modulus of the alloy，compares the advantages，disadvantages and application scope of relevant calculation models such as equal stress-strain model，rule of mixture，Halpin-Tsai model and two-phase composite model，summarizes the current situation and progress of the research on the modulus properties of magnesium-based materials，and reviews the two major ways of modulus improvement of magnesium-based materials and the mechanism of performance improvement. Based on the integrated computational material engineering，the integrated development strategy of high-strength and high-modulus magnesium-based materials for atomic-lattice scale analogy high-modulus aluminum alloy development and machine learning assisted optimization experimental design is proposed.

Keywords

• magnesium alloy
• magnesium matrix composites
• high modulus performance
• integrated computational material engineering