|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Advances in Titanium Technology
||M-27: Investigation of Complex Microstructure in Selective Laser Melted Near Alpha Titanium Alloy Using Scanning Electron Microscopy
||Cameron Tucker, Deepak V. Pillai, Ahsan Habib Munna, Yufeng Zheng
|On-Site Speaker (Planned)
Near-alpha titanium (Ti) alloys are widely used for high temperature applications in the aerospace field, due to their superior creep properties. Additive manufacturing (AM) is gaining a large acceptance in manufacturing hard-to-machine Ti alloys. One of the major challenges in the AM of Ti alloys is to understand the complex microstructure arising from the rapid heating and cooling processes during AM. In this work, the microstructure in a selective laser melted (SLM) near-alpha Ti-6Al-2Sn-4Zr-2Mo alloy was characterized using advance scanning electron microscopy and quantitatively processed using the MIPAR image analysis software. It was found that the prior beta grains have an epitaxial growth along the build direction with acicular alpha or alpha prime phases throughout the beta grains. Additionally, the effect of aging on the microstructural change in SLMed Ti-6242 alloy will also be discussed. This work is supported by the NSF CAREER Award, grant DMR – 2145844.
||Titanium, Modeling and Simulation, Mechanical Properties