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A review of new Ti-based materials manufactured in situ for biomedical applications

Dobrzańska-Danikiewicz Anna, Bączyk Aleksander

Journal of Achievements in Materials and Manufacturing Engineering

2023

Vol. 121, nr 2

306--319

The paper aims to present current trends and achievements in fabricating biomedical titanium materials with selected additives via in-situ additive manufacturing (AM) by selective laser melting (SLM). Design/methodology/approach With the help of the Scopus search engine, the articles regarding in-situ fabricating of titanium-molybdenum, titanium-niobium, titanium-zirconium, and titanium with the addition of selected transition metal carbides were collected. The information on material composition, phase structure and mechanical properties were aggregated and compared. A heuristic analysis was conducted to determine the potential and attractiveness of each proposed Ti-based material for use in biomedical applications. The results of the analysis to make a dendrological matrix plot were used. Findings Despite good biocompatibility and mechanical properties closer to the human bone than Ti6Al4V, the suggested additives, except niobium, do not exhibit strong popularity. Due to its beneficial impact on the desired mechanical properties, the titanium-to-additive ratio is often experimentally determined to retain as much βTi phase as possible. Research limitations/implications Based on the collected data, the in-situ alloyed titanium-niobium possesses the closest mechanical properties to the human bone of all considered additives. In-situ, fabricated titanium-selected transition metal carbides composite with the highest hardness of the proposed additives might be useful for dental applications as coatings or implants. Practical implications The Ti-based materials presented may be used for prosthetics and dental implants as new alternatives for Ti6Al4V. They are safe and mechanically closer to the human bone as Ti6Al4V. Originality/value Presented work points at the research gap in the in-situ fabricating of titanium and proposed additives during laser-based additive processes. The authors suggest a good potential worth further studying. More research will be conducted in the near future.