|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Nano/Micro-mechanics and Length-scale Phenomena
||Engineering Crystallographic Texture in Additively Manufactured Metals
||Gianna Valentino, Robert Mueller, Zach Post, Morgana Trexler
|On-Site Speaker (Planned)
Design of new structural alloys with enhanced mechanical performance has traditionally relied heavily on the exploitation of the processing-structure-property relations. Additive manufacturing (AM) technologies, owing to rapid heating and cooling rates, offer a new processing space to design microstructures with unique grain morphologies, misorientations, and metastable dislocation cell structures. However, it is challenging to control the resulting microstructure because minor variations in processing parameters can lead to substantial shifts. While AM has spawned a considerable amount of research, few studies have used these challenges as a means to control microstructure and local properties. Here we report on the AM processing of low-stacking fault energy metals to tailor the crystallographic texture. Emphasis will be placed on variations in thermal history and assessing the location-specific properties via nanoindentation. Although still in its infancy, a study to develop growth twins in these textured AM materials is ongoing and the results will be discussed.