|About this Abstract
||MS&T22: Materials Science & Technology
||Processing-Microstructure-Property Relationships of Titanium and Titanium Alloys
||Titanium Alloy Microstructures Produced by Additive Manufacturing and Deformation
||Amy J. Clarke, Benjamin Ellyson, Alec Saville, Chris Jasien, Jake Benzing, Adam Creuziger, Sven Vogel, Kamel Fezzaa, Wayne Chen, John Foltz
|On-Site Speaker (Planned)
||Amy J. Clarke
Titanium (Ti) and its alloys are ubiquitous in the aerospace, defense, and biomedical industries and are often used to realize property and performance gains. Today, state-of-the-art characterization techniques available in the laboratory and at national user facilities are enabling unprecedented, multiscale in-situ/ex-situ studies of Ti alloys and new insights into alloying-processing-microstructure-property-performance relationships. Here we highlight the role of thermals gradients, solidification velocities, and complex thermal cycling on the phases and microstructures developed in commercial and novel Ti alloys under additive manufacturing conditions, revealing possible strategies for microstructure and property control. We also explore the role of phase stability, omega-phase, and transformation- and twinning-induced plasticity, or TRIP/TWIP, on the mechanical response of metastable Ti alloys after/during quasi-static or dynamic testing. These deformation mechanisms can be tailored to design the properties of Ti alloys for high-performance structural applications.