About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Titanium Technology
|
Presentation Title |
Stress Induced Martensitic Transformation and Twinning in Beta Titanium Alloys with Increased Oxygen Content |
Author(s) |
Mariano Casas Luna, Jiří Kozlík, Dalibor Preisler, Hanuš Seiner, Tomáš Chráska, Josef Strasky |
On-Site Speaker (Planned) |
Mariano Casas Luna |
Abstract Scope |
Various Ti-Nb-Zr-O based biomedical alloys were prepared from elemental powders and titanium dioxide powder by Field Assisted Sintering Technique (FAST). Four layered samples covering together 24 chemical compositions were prepared. Selected chemical compositions were prepared also by a common arc melting. Compression tests were performed at room temperature, and the deformed microstructures were analyzed by electron back-scatter diffraction (EBSD). Both stress induced martensite and {332}<113> twinning was found, strongly depending on a particular Nb content. Sequence of formation of martensitic phase / twins during cooling and deformation was derived form a detail analysis of EBSD data (Kikuchi patterns). Effect of Nb and O on stability of parent beta matrix was estimated. |
Proceedings Inclusion? |
Planned: |
Keywords |
Titanium, Phase Transformations, Characterization |