|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Weldability of High Entropy Alloys (HEA): High-throughput Exploration for Structural Alloy Design
||Alexander C. Martin, Thomas Estep, Carolin Fink
|On-Site Speaker (Planned)
HEA can be tailored to have good mechanical properties, however their suitability for structural use is constrained by many others, including the ability to be joined and formed into complex shapes. Welding is a critical manufacturing process for structural components. It is essential to address the weldability of candidate HEA during the alloy development process. This can enable enhancement of weld properties, and early avoidance of adverse issues related to welding by modification of composition or microstructures during an application-driven HEA design. We propose a sequential process to screen and evaluate a large number of compositions for their metallurgical and mechanical response to the heat of welding processes. This talk will focus on how fusion-based processes affect candidate structural HEA. High-throughput thermodynamic calculations and weldability experiments are used to rapidly identify a compositional space for alloys with development potential, and quickly reject those with critical deficiencies with regard to weldability.