About this Abstract |
Meeting |
Advances in Welding and Additive Manufacturing Research 2022
|
Symposium
|
Advances in Welding and Additive Manufacturing Research 2022
|
Presentation Title |
Enabling Similar and Dissimilar Joining Using Multi-Principal Elements Alloys |
Author(s) |
Zhenzhen Yu, Benjamin Schneiderman, Abdelrahman Abdelmotagaly, Chihpin Chuang |
On-Site Speaker (Planned) |
Zhenzhen Yu |
Abstract Scope |
In almost every manufacturing sector, challenges exist in joining dissimilar materials due to the mismatches in their thermal physical properties and chemical incompatibility; these challenges are exacerbated as component and system designs demand ever-increasing performance and interest in additive manufacturing of advanced multi-material structures continues to grow. A promising approach to prevent the detrimental reactions at the dissimilar joint interface is to place a diffusion barrier between the base metals. Meanwhile, a ductile interlayer is needed to accommodate the thermally induced stress due to the difference in thermal expansion of the base materials. Multi-principal elements alloys (MPEA) have a vast compositional space available. Their tendency to form entropy-stabilized, simple solid solution phases, and to exhibit composition-dependent sluggish diffusion characteristics, make them potential candidates as filler metals for similar and dissimilar joining. In this study, a few examples will be shown to demonstrate the effectiveness of MPEA fillers designed for weld defect control and dissimilar materials joining. |
Proceedings Inclusion? |
Undecided |