| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Single-Melt Pool Methods to Print the Unprintable |
| Author(s) |
Marcus Hansen, Wuxian Yang, Wen Chen, Kelvin Xie |
| On-Site Speaker (Planned) |
Marcus Hansen |
| Abstract Scope |
Geometries produced with laser powder bed fusion have a complex thermal history which includes cyclical melting and solidification with high heating and cooling rates. This thermal cycling can lead to undesirable build defects, such as hot cracking, that are detrimental to the material’s properties. Limiting the printing process to geometries composed of minimally overlapping single-melt pools in a layer can reduce the cyclic melting and solidification in a manufactured part and thus reduce the propensity for cracking. Inconel 939 is a nickel-based superalloy that has desirable high temperature properties but has traditionally suffered from cracking when produced using laser powder bed fusion. In this work, we demonstrate that crack density can be reduced in small-scale Inconel 939 geometries produced using laser powder bed fusion. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |