| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
2021 Technical Division Student Poster Contest
|
| Presentation Title |
Prediction and Testing of Hot Cracking Susceptibility during Local Melting in Binary and Multi Component Aluminum Alloys |
| Author(s) |
Shubhra Jain |
| On-Site Speaker (Planned) |
Shubhra Jain |
| Abstract Scope |
Hot cracking is a widespread and severe defect during local melting, and it is clearly an important issue defining the alloy’s design capability during AM processing. Because of the nature of semi-solid mushy zone and complexity of the interactive mechanisms involved at the microstructural scale, several criteria have been developed to predict hot cracking. Since there is no ultimate controlling factor, these criteria do not fully predict crack susceptibility with respect to all possible metallurgical and thermo-mechanical factors. Likewise, testing and quantification of hot cracking susceptibility is not yet standardized and there is a critical need for a reliable test method. The work presented here involves the use of a new laboratory-scale localized melting method for rapid quantification of the in-build crack susceptibility. The results are analyzed in combination with direct hot cracking predictors obtained from thermodynamic and micro-segregation models complemented with relevant comparisons are made with reported alloy performance. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Aluminum, Other |