Material and Manufacturing Technologies:

nanocrystalline Ti-Cu alloy is introduced as a new orthopedic material

In a research study, a nanocrystalline Ti-Cu intermetallic alloy was developed by a powder metallurgy route, and its application as an orthopedic material was examined by the microstructural, mechanical, corrosion, antibacterial, cytotoxicity and osseointegration examinations.

The necessity for high-performance biomaterials are driving the development of new metallic alloys with improved mechanical and biological responses. Nowadays, metallic biomaterials are employed in various parts of the human body, such as implants replacing shoulders, knee, hips and elbow. In a research study, a nanocrystalline Ti-Cu intermetallic alloy was developed by a powder metallurgy route, and its application as an orthopedic material was examined by the microstructural, mechanical, corrosion, antibacterial, cytotoxicity and osseointegration examinations. In fact, synthesis of new Ti-Cu alloy by mechanical alloying and sintering process has been done. Microstructural characterization demonstrated that the formation of TiCu and Ti2Cu3 as major phases with 23 nm grain size in the structure of the alloy. This new synthesized material has shown ultra-high hardness of 10 GPa and acceptable value of toughness of 8.14 MPam1/2. New Ti-Cu alloy is 98 % anti-bacterial rate against S. aureus and E. coli. Also, it has excellent cell viability to MG-63 cells, and high osteoblast formation rate, corrosion behavior of the alloy is slightly lower than cp-Ti, and high osteoblast formation rate, which indicate a great potential of this alloy for biomedical application.

Source:

https://www.sciencedirect.com/science/article/abs/pii/S0927776520301193

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