|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Frontiers in Solidification Science and Engineering
||Graphite Morphology in Directionally Solidified Cast Iron
||Subhojit Chaktaborty, Amber L Genau
|On-Site Speaker (Planned)
Cast iron alloys (Fe-C-Si) exhibit a wide range of properties that are strongly dependent on the microstructure. The microstructure itself depends the solidification velocity (V) and temperature gradient (G), in addition to composition. Processing via a directional solidification furnace allows for precise control of G and V, permitting study of the effect of these parameters on the graphite morphology of cast iron. In previous work, the nodularizing effect of Mg and Ce was studied on near-eutectic foundry grade alloys, which contained a variety of impurity elements (S, P, Sn, etc.) in varying quantities. The current work begins with small batch, high-purity elemental components so that the composition can be precisely controlled and the effects of individual elements investigated. Examples of these samples after directional solidification will be shown, illustrating the effect of composition and velocity on the nucleation and growth behavior of graphite.
||Planned: Supplemental Proceedings volume