About this Abstract |
Meeting |
Superalloys 2024
|
Symposium
|
Superalloys 2024
|
Presentation Title |
Eutectic Superalloys for Laser Powder Bed Fusion |
Author(s) |
Katerina Christofidou, Jonathon Markanday, Alison Wilson, Ed Pickering, Nicole Church, James Miller, Nicholas Jones, Neil Jones, Howard J. Stone |
On-Site Speaker (Planned) |
Katerina Christofidou |
Abstract Scope |
Due to the small freezing range of eutectic alloys, the Cotac-type alloys might be viable alternatives to conventional Ni-based superalloys when processed through additive manufacturing. Laser-pass assessment reveals that both Cotac-74 and Cotac-744 display improved cracking resistance when compared to the conventional Ni-based superalloy CM247LC. During laser powder bed fusion Cotac-74 displayed the highest cracking resistance, with no microcracking detected in the as-built or heat-treated microstructure. The promising results presented for Cotac-74 highlight the possible use of this alloy for the additive manufacturing of high-temperature aerospace components. |
Proceedings Inclusion? |
Definite: At-meeting proceedings |