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以振动球磨方式混合Ti-Mo粉体,采用凝胶注模成形制备了多孔Ti-7.5Mo合金制品,并利用扫描电子显微镜、X射线衍射和力学性能试验分别对其显微结构和力学性能进行了测试和分析,研究了预混液单体质量分数和浆料固相含量对其孔隙性能和力学性能的影响.结果表明,与纯Ti粉末相比,添加质量分数为7.5%的Mo混合粉末浆料的流变特性较好,所得合金由分布均匀的α-Ti基体和β-Ti组成,其孔隙率为39.15%~45.97%,孔径为5~98μm.与凝胶注模多孔纯钛相比,多孔Ti-7.5Mo合金的生物力学性能更加优异,适合作为医用植入材料.
The Ti-Mo powders were mixed by vibrating ball mill and porous Ti-7.5Mo alloy was prepared by gelcasting. The microstructure and mechanical properties of Ti-Mo alloy were characterized by scanning electron microscopy, X-ray diffraction and mechanical properties tests respectively The effects of monosized monomer mass fraction and slurry solid content on the pore properties and mechanical properties of the composites were investigated.The results show that compared with the pure Ti powder, the mass fraction of Mo mixed powder slurry The rheological properties of the material are better, and the resulting alloy is composed of α-Ti matrix and β-Ti with a porosity of 39.15% -45.97% and a pore size of 5 ~ 98μm.Compared with gelcast porous titanium , The porous Ti-7.5Mo alloy has more excellent biomechanical properties and is suitable as a medical implant material.