|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||Welding Metallurgy and Weld Properties of High Entropy Alloys
||Alexander C. Martin, Carolin Fink
|On-Site Speaker (Planned)
The ability to be joined and formed into complex shaped components is an important constraint for structural use of high entropy alloys (HEA). Welding is a critical fabrication process that is challenging due to its non-isothermal nature and complex chemical and physical reactions. Weld microstructures and properties directly affect service performance of welded components. Hence, a detailed understanding of the metallurgical and mechanical response in HEA considering both fusion based and solid-state welding processes is increasingly important to expand their future range of application. This talk highlights current research on weld microstructure evolution and weld structure-property relationships for main HEA systems. Results from advanced characterization techniques, physical simulation and thermodynamic and kinetic modeling are reviewed. Challenges such as strength reduction, formation of intermetallic compounds or changes in phase transformation and transformation temperatures are discussed. Finally, opportunities to implement welding considerations in the HEA development process are presented.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume