rus
Issue #8/2025
I. A. Polozov, V. A. Nefedova, A. M. Zolotarev, A. A. Popovich
Influence of Selective Laser Melting Parameters on the Porosity and Properties of Functionally Graded Implants Made of Biomedical Titanium Alloys
Influence of Selective Laser Melting Parameters on the Porosity and Properties of Functionally Graded Implants Made of Biomedical Titanium Alloys
DOI: 10.22184/1993-7296.FRos.2025.19.8.596.607
This paper provides the research results related to the development and optimization of new biomedical titanium alloys and three-dimensional lattice structures based on the triple periodic minimal surfaces (TPMS) for application in the orthopedic implants. Systematic variation of the laser power and scanning speed during the selective laser melting process has made it possible to establish the optimal processing modes for the Ti‑13Nb‑13Zr‑5Cu, Ti‑10Ta‑2Nb‑2Zr, and Ti‑15Ta alloys and achieve high material density and favorable mechanical properties. It has been found that the Ti‑13Nb‑13Zr‑5Cu alloy has the highest strength, while the tantalum-based alloys are specified by a lower modulus of elasticity and increased ductility. The study of TPMS structures (gyroid, schwarz, split) with various volume fractions has demonstrated possible regulation of the modulus of elasticity and strength of the structures down to the bone tissue level. Based on the data obtained, a prototype of a functionally graded hip prosthesis has been developed, ensuring the optimal stress distribution and improved biomechanical properties.
Tags: functionally graded implants hip prosthesis mechanical properties selective laser melting titanium alloys механические свойства протез тазобедренного сустава селективное лазерное плавление титановые сплавы функционально-градиентные имплантаты
Subscribe to the journal Photonics Russia to read the full article.
This paper provides the research results related to the development and optimization of new biomedical titanium alloys and three-dimensional lattice structures based on the triple periodic minimal surfaces (TPMS) for application in the orthopedic implants. Systematic variation of the laser power and scanning speed during the selective laser melting process has made it possible to establish the optimal processing modes for the Ti‑13Nb‑13Zr‑5Cu, Ti‑10Ta‑2Nb‑2Zr, and Ti‑15Ta alloys and achieve high material density and favorable mechanical properties. It has been found that the Ti‑13Nb‑13Zr‑5Cu alloy has the highest strength, while the tantalum-based alloys are specified by a lower modulus of elasticity and increased ductility. The study of TPMS structures (gyroid, schwarz, split) with various volume fractions has demonstrated possible regulation of the modulus of elasticity and strength of the structures down to the bone tissue level. Based on the data obtained, a prototype of a functionally graded hip prosthesis has been developed, ensuring the optimal stress distribution and improved biomechanical properties.
Tags: functionally graded implants hip prosthesis mechanical properties selective laser melting titanium alloys механические свойства протез тазобедренного сустава селективное лазерное плавление титановые сплавы функционально-градиентные имплантаты
Subscribe to the journal Photonics Russia to read the full article.
Readers feedback
