Ti-13Nb-13Zr is a near-beta titanium alloy composed primarily of titanium with balanced additions of niobium and zirconium, designed to achieve low elastic modulus while maintaining strength and biocompatibility. It is primarily used in orthopedic implants and dental applications where reducing the stiffness mismatch between implant and bone is critical to prevent stress shielding and promote long-term integration. This alloy is notable for combining β-stabilizing elements (Nb, Zr) that lower the Young's modulus compared to conventional titanium alloys, making it attractive for load-bearing implants that require both mechanical reliability and biological acceptance without the cytotoxicity concerns of vanadium-containing alternatives.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 15.00 | - | — | ||
Poisson's Ratio(ν) | 0.3300 | - | — | ||
Ultimate Tensile Strength(σUTS) | 149.4 | ksi | — | ||
Yield Strength (0.2% offset)(σy) | 130.5 | ksi | ASTM F1713, aged | ||
Young's Modulus(E) | 11,458 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Thermal Conductivity(k) | 4.045 | BTU/(hr·ft·°F) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1803 | lb/in³ | — |