| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Novel Deformation Behavior and Strain Accommodation Mechanism in a Selective Laser Melted Metastable β-Ti Alloy |
| Author(s) |
Sydney Grace Fields, Dian Li, Deepak Pillai, Yiliang Liao, Yufeng Zheng |
| On-Site Speaker (Planned) |
Sydney Grace Fields |
| Abstract Scope |
Titanium alloys are critical structural materials used to build lightweight aircraft for improved fuel efficiency, and are widely known for their excellent comprehensive properties, including high specific strength, excellent toughness, and high corrosion resistance. These properties can be fine-tuned by the manipulation of microstructure evolution during a variety of heat treatment. In this work, we used advanced scanning electron microscopy (SEM), transmission electron microscopy (TEM), and aberration-corrected scanning/transmission electron microscopy (ACSTEM) to quantitatively study the deformation behavior of the selective laser melted (SLMed) Ti-5Al-5V-5Mo-3Cr (wt.%, Ti-5553) alloy. The unique deformation mechanisms and strain accommodation, e.g., kink band and stress-induced martensitic transformation, were identified using electron backscattered diffraction (EBSD) and diffraction-based TEM. The crystal structure, size and distribution of martensite was studied using ACSTEM. This work is supported by the National Science Foundation, grant CMMI-2122272 and the National Science Foundation Graduate Research Fellowship Program. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, |