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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

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Mechanical Behavior of Thermally Stable, Hierarchical Ni-Y Alloys
Micro-structure Dependent Nano-scratch Behavior in Additively Manufactured Inconel 718
Nano-mechanical Behavior of Advanced Structural Alloys
Prediction and Testing of Hot Cracking Susceptibility during Local Melting in Binary and Multi Component Aluminum Alloys
Solidification and Defects Structure Evolution in Metal Additive Manufacturing via Molecular Dynamics Simulations
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Utilizing Advanced Manufacturing for the Development of Advanced In-pile Sensors and Instrumentation
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