【摘要】 通过多道次搅拌摩擦加工（MP-FSP）制备了医用可降解β-TCP/WE43复合材料，通过金相、扫描电子显微镜和能谱分析对β-TCP/WE43复合材料的显微组织进行了表征，并对该复合材料的力学性能、耐蚀性能和腐蚀摩擦磨损性能进行了测试分析.研究结果表明，在三道次搅拌摩擦加工后，β-TCP颗粒在镁基体中分散性较好，且搅拌区晶粒细小.多道次搅拌摩擦加工可以有效改善β-TCP颗粒在镁基体内的分布和细化晶粒，从而同时提高复合材料的机械性能、耐蚀性能和耐腐蚀磨损性能.该研究结果可为生物降解的镁基植入物的开发提供重要指导.更多还原

【Abstract】 Medical degradable β-TCP/WE43 composite was fabricated via multi-pass friction stir processing(MP-FSP). The microstructure of the β-TCP/WE43 composite was characterized by metallography, scanning electron microscopy, and energy dispersive spectrometer, and the mechanical properties, corrosion resistance, and corrosion-wear performance of the composite were tested and analyzed. The results showed that, after three passes of friction stir processing(FSP), β-TCP particles were well dispersed in the magnesium matrix, and the grains in the stirring zone were refined. MP-FSP can effectively improve the distribution of β-TCP particles in the magnesium matrix and refine the grains, thereby simultaneously enhancing the mechanical properties, corrosion resistance, and corrosion-wear resistance of the composite. These research findings can provide significant guidance for the development of biodegradable magnesium-based implants.更多还原