|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||Multiscale Mechanical Property Measurement and Microstructural Characterization of Additively Manufactured Ti-6Al-4V Components
||Tugce Ozturk, Xinyi Gong, Soumya Mohan, Surya R. Kalidindi, Anthony D. Rollett
|On-Site Speaker (Planned)
Ti-6Al-4V, one of the most popular alloys used in metal additive manufacturing, has been shown to hold highly heterogeneous characteristics when produced by electron beam melting (EBM), an emerging AM technique. The thermal gradient accompanying this manufacturing process directly affects the resulting microstructure and the mechanical properties of the components. This study shows a set of microstructural characterization techniques and multiscale mechanical property measurements, bridging the local heterogeneous fields with macroscopic properties. Optical microscopy, EDS and EBSD techniques have been combined in different length scales. Characterization results are used to determine regions of interest, and nanoindentation is performed on these regions. Small-scale properties are translated into large-scale by a homogenization scheme, and the results are compared with macroscopic tensile tests performed in various directions and build heights. It is shown that the local heterogeneous properties can be utilized to determine the overall hardening parameters for constitutive modeling.
||Planned: Supplemental Proceedings volume