|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Multi-material Additive Manufacturing: Processing and Materials Design
||Additively Manufactured Functionally Graded Steels through a Novel Approach to Path Finding
||Olga Eliseeva, Tanner Kirk, Ji Ma, Raymundo Arroyave, Ibrahim Karaman
|On-Site Speaker (Planned)
Additive manufacturing provides a platform to develop new and innovative materials. A multi powder feeder LENS system provides the ability to develop functional metallic gradients by directly melting together different elemental powders. Functional gradient metals possess different material properties throughout the structure, making them very useful tools to overcome a number of engineering challenges. The transition from one material to another is not without its challenges: brittle phases and misfiling lattices can cause cracking or even failure. Traditionally, a linear path plan was established to avoid these brittle phases. In a large multivariable space a linear path is not always feasible, therefore we developed a non-linear path in multivariable space that allows for the avoidance of brittle phases. This research focuses on the avoidance of the sigma phase in the Steel 316 phase diagram as we transition from Austenitic to Martensitic phase.
||Planned: Supplemental Proceedings volume