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International Journal of Bioprinting Lattice-Solid hybrid 3D printing for artificial implant

Figure 12. Cross-sectional EBSD analysis of tensile test fractured (a) P-type 40% and (b) S-type 40% specimens. Inverse pole figure map and texture
analysis results of (a-1) solid and (a-2) mesh region in P-type specimen. Inverse pole figure map and texture analysis results of (b-1) solid and (b-2) mesh
region in S-type specimen. Texture analysis of (c) P-type 40% and (d) S-type 40% specimens.
that the S-type had higher tensile strength than the P-type results showed that the tensile strength increases with
in EBSD results and fractional analysis. increasing volume fraction of the solid region composed
of stages 1 and 2, regardless of the specimen type.
4. Conclusion In a tensile test, the performance of the shell design was
The mechanical behavior of Ti-6Al-4V specimens with the superior to that of the P-type with the same volume fraction
proposed hybrid structures produced by EBM was tested of lattice structures. The P- and S-types were analyzed
and simulated. We compared two types of hybrid structures using EBSD results and fractographic analysis. After the
and validated the FEA results with the experimental data. tensile test, the EBSD results for the cross-sectional area of
Based on the FEA results, the maximum von Mises stress the S-type specimen revealed that the lath width was finer
increases as the volume fraction of the lattice structure in the mesh region than in the solid region. In contrast, the
increases. Analysis of the tensile test also showed that the P-type specimen’s lath widths were similar. Fine acicular α’
mechanical performance tends to decrease as the volume martensite observed in the S-type mesh region is generated
fraction of the lattice structures increases. The fractography at high-temperature gradients near the rim and high

Volume 9 Issue 4 (2023) 25 https://doi.org/10.18063/ijb.716