颗粒增强铝基复合材料制备方法及半固态触变成形研究进展OA

Particle-reinforced aluminum matrix composites(PRAMCs),as light-weight and high-performance structural and functional materials,offer broad application prospects in aerospace,weaponry,transportation,and other fields.This paper systematically reviews the main preparation technologies for PRAMCs developed both domestically and internationally,providing a comparative analysis of two major categories of preparation methods,ex-situ and in-situ synthesis,in terms of their process flows,raw materials,microstructural characteristics,and resulting properties,along with their respective technical advantages and limitations.To further achieve the high-quality forming of high-performance PRAMCs components,semi-solid thixoforming technology effectively integrates the near-net-shape advantages of casting and the mechanical performance benefits of plastic forming,compared to traditional casting and plastic processing techniques.It demonstrates significant potential for the near-net-shape forming of complex-shaped,high-performance PRAMCs components.The key prerequisite for semi-solid thixoforming lies in the preparation of semi-solid billets with fine and uniform spherical microstructures.Thus,this paper provides a detailed overview of the primary methods for preparing semi-solid billets,and reviews research progress in related thixoforming technologies for composites and alloys.Finally,future trends for PRAMCs are discussed,focusing on design and development,innovation in preparation processes,and the deepened application of thixoforming technology.