|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Applications of Solidification Fundamentals
||New Composition Based Index for Solidification Cracking Resistance
||Rafael Giorjao, Benjamin Sutton, Antonio Ramirez
|On-Site Speaker (Planned)
Defects such as solidification cracking are commonly observed in metal-based additive manufacturing processes, which critically affect their mechanical and physical properties. Computational modeling has emerged as a useful tool to assist with the exploration of solidification cracking behavior. However, the application of such tools is often limited by model complexity/availability of material-specific input parameters. Regarding this issue and the demanding need for reliable models, a simple model to explore solidification cracking resistance of alloys during additive manufacturing is presented. The presented model evaluates interdedritic liquid flow during non-equilibrium solidification, which plays a substantial role in solidification cracking resistance. The dendritic profiles were built using calculated fractions of solid from commercial thermodynamic software for different compositions. The calculated results were compared to experimental solidification cracking data and showed satisfactory agreement. It is envisaged that this new approach can aid in the design and development of alloys, specifically for additive manufacturing applications.
||Additive Manufacturing, Modeling and Simulation, Solidification