In this study, a multi-material NiTi-PEEK cellular structured solution was designed, produced and characterized targeting orthopedic applications. For that purpose, Selective Laser Melting (SLM) technique was used to produce NiTi cellular structures with different open-cell sizes and wall thicknesses. Hot Pressing (HP) technique was used to introduce PEEK in the open-cells of NiTi structures to obtain multi-material components. Morphological characterization showed that the selected SLM processing parameters were suited to achieve high-quality parts without significant defects. Tribological characterization proved an enhanced wear resistance to the multi-material specimens when compared with the mono-material NiTi structures. These multi-material structures are a promising solution for providing a customized stiffness and superior wear resistance to NiTi structures to be integrated in innovative orthopedic designs.

在这项研究中，针对骨科应用设计，生产和表征了多种材料的NiTi-PEEK细胞结构解决方案。为此，选择性激光熔化（SLM）技术用于生产具有不同开孔尺寸和壁厚的NiTi孔结构。使用热压（HP）技术将PEEK引入NiTi结构的开孔中，以获得多材料组件。形态表征表明，所选的SLM加工参数适合于获得无明显缺陷的高质量零件。与单材料NiTi结构相比，摩擦学特性证明了对多材料试样的增强的耐磨性。