About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
Presentation Title |
A Novel Method for Determining Printability of Aluminum Alloys for LPBF Applications |
Author(s) |
John Mackenzie O`Connell, Bhaskar Majumdar, Timothy Nice, Nathaniel Badgett, Mohammad Tashfiul A Choudhury |
On-Site Speaker (Planned) |
John Mackenzie O`Connell |
Abstract Scope |
The rapid solidification seen in laser powder bed fusion (LPBF) additive manufacturing causes issues with segregation and cracking especially in aluminum alloys. This makes research and development of alloys that print well of paramount importance to the materials community. The traditional method of alloy development for LPBF applications can be cost prohibitive due to the need to produce powders to test printability. This work sets out to show that lasering melt pools into arc melted samples, referred to as line scans, of the aluminum alloy of interest is an effective method to determine the alloys printability without having to fabricate a custom powder. SEM and EDS analysis of transverse sections on the line scans are examined looking for cracks in the melt pools, and segregation of alloying elements. Aluminum alloys of interest include Al-Mg-Cu, Al-Si-Mg, Al-Sc/Zr, and Al-Sc-Sm. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Additive Manufacturing, |