About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
Secondary Phase Refinement in Molten Aluminum via Low Power Electric Current Processing |
Author(s) |
Jonathan Goettsch, Aaron Gladstein, David Weiss , Ashwin Shahani, Alan Taub |
On-Site Speaker (Planned) |
Jonathan Goettsch |
Abstract Scope |
Metal matrix composites offer improved mechanical properties at a reduced weight compared to monolithic alloys. The reinforcing capabilities of the particulate are dependent on their size, distribution, and bonding with the matrix. The intermetallic compound, Al3Ti, has excellent bonding with the surrounding matrix but can grow detrimentally large with extended hold times in the molten state. Depending on the processing condition and with varying levels of silicon, very different morphologies of the Al3Ti are observed. In addition, passing electrical current at low power levels through the melt has been found to reduce the size of the Al-Ti intermetallic phase by inducing fracture. This research focuses on the novel processing method of passing an electric current through molten aluminum alloy to refine the reinforcing secondary phase. This technique could have broad impacts on particulate refinement in multiple metal matrix composite systems. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Composites, Other |