Porous-Ti6Al4V (P-Ti6Al4V) alloys were produced using the hot pressing and spacer methods for hard tissue biomedical applications and in particular, the effects of porosity on the mechanical and morphological properties of the structures were investigated. P-Ti6Al4V structures having the homogeneously distributed porosities at 41.08, 52.37 and 64.10% were fabricated by adding 40, 50 and 60% spherical magnesium (Mg) powder with 350 μm particle sizes in average as spacers and evaporating magnesium via the atmosphere-controlled sintering. The obtained porous structures were characterized by SEM, XRD and EDS. Furthermore, the strength and elastic modulus were evaluated by performing compression tests. Elastic modulus and densities were found to be 40–171 MPa, 2–5 GPa and 1.59–2.61, respectively and these values have been shown to decrease with an increase in porosity. The achieved density and mechanical property values, in particular, elastic modulus are close to human bone and within acceptable ranges for with biomedical application purposes. In addition, it was also found out from the analysis of produced P-Ti6Al4V that macropores were responsible for mechanical anisotropy contributed to formation of homogeneous and inter-connected open pores.

多孔 Ti6Al4V (P-Ti6Al4V) 合金是使用热压和间隔方法生产的硬组织生物医学应用，特别是研究了孔隙率对结构力学和形态特性的影响。通过添加平均粒径为 350 μm 的 40%、50% 和 60% 球形镁 (Mg) 粉末作为间隔物，并通过气氛控制烧结蒸发镁，制备了具有 41.08、52.37 和 64.10% 均匀分布的孔隙率的 P-Ti6Al4V 结构. 通过SEM、XRD和EDS对所得多孔结构进行表征。此外，通过进行压缩试验来评价强度和弹性模量。发现弹性模量和密度为 40-171 MPa、2-5 GPa 和 1.59-2.61，并且这些值已显示随着孔隙率的增加而降低。达到的密度和机械性能值，特别是弹性模量接近人体骨骼，并且在生物医学应用的可接受范围内。此外，通过对生成的 P-Ti6Al4V 的分析还发现，大孔是造成机械各向异性的原因，有助于形成均质且相互连接的开孔。