多道次搅拌摩擦加工制备生物可降解β-TCP/WE43复合材料  

Development of Biodegradableβ-TCP/WE43 Composites through Multipass Friction Stir Processing

作　　者：滕杰[1] 王昕 苏金龙 蒋福林[1] 傅定发[1] TENG Jie;WANG Xin;SU Jinlong;JIANG Fulin;FU Dingfa(College of Materials Science and Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学材料科学与工程学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2024年第12期186-194,共9页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(52374385)。

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.Medical degradableβ-TCP/WE43 composite was fabricated via multi-pass friction stir processing(MP-FSP).The microstructure of theβ-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 ofβ-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.

关 键 词：搅拌摩擦加工 镁基复合材料 Β-TCP 生物可降解 腐蚀 摩擦磨损 

分 类 号：TB333[一般工业技术—材料科学与工程]