| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Defects and Properties of Cast Metals
|
| Presentation Title |
Experimental Validation of Advanced Shrinkage Porosity Simulations for Steel Castings |
| Author(s) |
Robert Donahue, Richard Hardin, Christoph Beckermann |
| On-Site Speaker (Planned) |
Christoph Beckermann |
| Abstract Scope |
Porosity due to solidification shrinkage is a troublesome defect in castings. It adversely affects the mechanical performance, leak resistance, and other properties of cast components. An advanced simulation model has recently been developed to predict the location, amount, and appearance of shrinkage porosity more accurately. The model is based on the discovery that all shrinkage porosity nucleates and grows in regions of a casting where the solid fraction is the lowest and calculates the feeding flows and pressure distribution in the liquid. Here, experiments are performed to validate the predictions of the model for steel castings. The test castings have relatively simple shapes that can be analyzed easily. The comparisons demonstrate the capability of the model to predict riser pipes, surface sinks, large internal shrinkage holes, and distributed microporosity. The predicted porosity locations and appearances more closely mirror observed porosity patterns than previous simulation models. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Solidification, Iron and Steel |