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 Biodegradable β-TCP/WE43 Composites through Multi-pass Friction Stir Processing
滕杰 1王昕 1苏金龙 1蒋福林 1傅定发1
作者信息
- 1. 湖南大学 材料科学与工程学院,湖南 长沙 410082
- 折叠
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.
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.
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Key words
friction stir processing/magnesium-based composite/β-TCP/biodegradation/corrosion/friction and wear引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据