|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||High Entropy Alloy Nanomaterials as Filler Materials for Brazing Ni-based Superalloys
||Anming Hu, Benjamin Nielsen, Denzel Bridges, Raymond Xu, Zhili Feng, Peter Liaw
|On-Site Speaker (Planned)
It is possible to design high entropy alloys (HEA) as brazing filler materials (BFM) with compatible metallurgical properties and the thermal expansion of coefficient to the based materials while without using melting point depressants (MPDs). However, the melting point of high entropy alloys is limited due to multiple design principles of high entropy alloys. In this work, we try to overcome this barrier through fabricating nanoscale high entropy alloys. We compared three methods to synthesize HEA nanomaterials: wet-chemistry, ball milling and electrical wire explosion. The microstructure, defects, thermal properties of these HEA nanomaterials are characterized and the fundamentals for brazing applications, such as the melting, wettability and solidification, element diffusions for vacuum brazing and laser brazing of Inconel 718 are investigated. The feasibility of HEA nanomaterials as brazing filler materials is also investigated through computational modeling using a phase field theory.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume