|About this Abstract
|2023 TMS Annual Meeting & Exhibition
|Advances in Titanium Technology
|Deformation Micromechanisms Observed in Binary Beta Ti Alloys Using TEM In Situ Tensile Tests
|Nicolas Bello, Florence Pettinari-Sturmel, Joël Douin, Frédéric Mompiou, Fan Sun, Frédéric Prima, Philippe Vermaut, Thierry Glorian, Philippe Castany
|On-Site Speaker (Planned)
Titanium alloys are mostly used in aeronautics, due to their high strength/density ratio and for biomedical applications because of their superior biocompatibility. While alloys with predominant beta phase (hcp) are the most common, metastable Ti alloys, i.e. alloys composed of beta phase (stable phase at high temperature; bcc) are more and more used for structural parts in aeronautics and are becoming the most credible alternative to improve the lifespan of biomedical devices into the human body. The beta phase is then stabilized at room temperature by the addition of beta-stabilizing alloying elements such as Mo, Nb, Cr or Ta. Different mechanisms of deformation can be activated in Ti alloys: dislocation slip, twinning and stress induced martensitic (SIM) transformation. This work is aimed to analyzed the deformation micromechanisms obtained in different binary Ti alloys using TEM in situ tensile experiments.
|Titanium, Characterization, Mechanical Properties