| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Alloy Design to Develop New Feedstock Materials III
|
| Presentation Title |
Insights into Additive Manufacturability and Microstructure Evolution from Simple Analytical Models |
| Author(s) |
Charles Smith, Madeleine Johnson, Olivia DeNonno, Luc Hagen, Daniel Gifford, Juan Gonzalez, Anthony Petrella, Zhenzhen Yu, Amy Clarke, Jonah Klemm-Toole |
| On-Site Speaker (Planned) |
Charles Smith |
| Abstract Scope |
Fusion based metal additive manufacturing, in its many forms, is a highly complex and dynamic process involving heat and mass transfer, solidification, and solid-state phase transformations. Despite these complex phenomena, valuable insights can be obtained from using simple analytical models to predict solidification conditions that relate to the likelihood of hot cracking or the tendency to form an equiaxed grain structure. In this presentation, we show how thermodynamic and heat transfer simulations can be combined with analytical solidification models to screen high temperature alloys for additive manufacturability. For selected cases, we compare predictions from these simple models to experimental results and discuss the role of alloy composition in affecting additive manufacturability. We demonstrate that modeling is accessible even to the non-modeler, and that there is significant value in using the results of simple analytical models to guide alloy exploration and experimentation. |