粉末冶金颗粒增强铝基复合材料的制备及研究进展.

Al-based particle-reinforced composites have become the focus research around the world due to their unique quality, economic and performance advantages. Powder metallurgy method has the advantages of flexible selection of reinforced particles, accurate and controllable content, and strong designability, which is one of the commonly used methods for preparing particle reinforced Al matrix composites and is favored by many scholars. The present paper firstly gives a brief introduction to the development of Al matrix composites. Secondly, the densification molding technology and sintering process in powder metallurgy process are summarized. Subsequently, the composition design, such as reinforcement type, content, particle size, distribution, etc., interface wettability and its control, the relationship between microstructure characteristics and mechanical properties, and the strengthening mechanism were mainly discussed. Finally, it analyses the problems and challenges faced by powder metallurgical particle-reinforced Al matrix composites and looks forward to their development. [ABSTRACT FROM AUTHOR]