RT info:eu-repo/semantics/article
T1 Biofunctional properties and electrochemical behavior of loose sintering titanium alloys under simulated oral conditions and acidic dietary habits
A1 Rosa, Julio E. de la
A1 García Hernández, Celia
A1 García García, Francisco J.
A1 Martín Pedrosa, Fernando
A1 Torres, Yadir
A1 García Cabezón, Ana Cristina
K1 Porous implants
K1 Loose sintering
K1 Titanium alloys
K1 Corrosion behavior
K1 Coca-cola, artificial saliva
K1 33 Ciencias Tecnológicas
AB Commercially pure titanium (cpTi IV) and Ti6Al4V are widely used in dental implants due to their good me-chanical properties and clinical reliability. However, their high elastic modulus may cause biomechanicalmismatch with bone, and Ti6Al4V contains potentially cytotoxic elements such as Al and V. Additionally,exposure to acidic carbonated beverages may compromise implant longevity by accelerating corrosion. Thisstudy compares the biomechanical (stiffness and strength) and biofunctional (corrosion resistance and bioac-tivity) performance of cpTi IV and Ti6Al4V with a commercial Ti35Nb7Zr5Ta alloy, which features a lowerelastic modulus and lacks cytotoxic elements. Although promising, Ti35Nb7Zr5Ta is more costly and requiresmore complex processing, warranting detailed evaluation. Disc-shaped samples were produced by loose sinteringand fully dense processing to assess the influence of porosity. Corrosion behavior was analyzed using open circuitpotential, electrochemical impedance spectroscopy, and potentiodynamic polarization in artificial saliva andCoca-Cola at 37 ◦C. Results show superior corrosion resistance for cpTi IV, balanced mechanical–corrosionbehavior for Ti6Al4V, and improved biomechanical compatibility and bioactivity for Ti35Nb7Zr5Ta. Porosityand acidic conditions negatively affected passive film stability. These findings support optimization of titanium-based dental and orthopedic implants.
PB Elsevier
SN 1226-086X
YR 2026
FD 2026
LK https://uvadoc.uva.es/handle/10324/83813
UL https://uvadoc.uva.es/handle/10324/83813
LA eng
NO Journal of Industrial and Engineering Chemistry, 2026
NO Producción Científica
DS UVaDOC
RD 28-mar-2026