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This is a Experimental Study study.

September 30, 2025CoatingsOpen Access

Physical Vapor Deposited TiN and TiAlN on Biomedical β-Type Ti-29Nb-13Ta-4.6Zr: Microstructural Characteristics, Surface Hardness Enhancement, and Antibacterial Activity

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This study reports on the impact of PVD coatings, improving hardness and antibacterial activity in beta-type titanium alloys.

TiAlN and TiN coatings significantly increased surface hardness, achieving values of 1468 HV and 1059 HV, respectively.
Microstructural analysis revealed both coatings maintain the structural integrity of the beta matrix while enhancing surface properties.
The wettability shifted from hydrophilic to moderately hydrophobic with TiN and highly hydrophobic with TiAlN, improving surface characteristics.
Antibacterial testing suggested a preliminary trend in activity, with no statistically significant difference between coated and uncoated options.

Hakan Yılmazer (2025) studied this question.

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