Ti–Zr alloys have recently started to receive a considerable amount of attention as promising materials for dental applications. This work compares mechanical properties of a new Ti–15Zr alloy to those of commercially pure titanium Grade4 in two surface conditions – machined and modified by sand-blasting and etching (SLA). As a result of significantly smaller grain size in the initial condition (1–2 µm), the strength of Ti–15Zr alloy was found to be 10–15% higher than that of Grade4 titanium without reduction in the tensile elongation or compromising the fracture toughness. The fatigue endurance limit of the alloy was increased by around 30% (560 MPa vs. 435 MPa and 500 MPa vs. 380 MPa for machined and SLA-treated surfaces, respectively). Additional implant fatigue tests showed enhanced fatigue performance of Ti–15Zr over Ti–Grade4.
|Number of pages||15|
|Journal||Journal of the Mechanical Behavior of Biomedical Materials|
|Publication status||Published - 1 Sep 2016|
- Dental implants
- Ti–Zr alloy
- SLA (Sand blasting and acid etching)
Medvedev, A. E., Molotnikov, A., Lapovok, R. Y., Zeller, R., Berner, S., Habersetzer, P., & Dalla Torre, F. H. (2016). Microstructure and mechanical properties of Ti–15Zr alloy used as dental implant material. Journal of the Mechanical Behavior of Biomedical Materials, 62, 384-398. https://doi.org/10.1016/j.jmbbm.2016.05.008