About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
F-16: Controlling Microstructures and Mechanical Properties of Nickel-based Superalloy Based on Multiscale Finite Element Thermal Analysis in Laser Powder Bed Fusion |
Author(s) |
Masahiro Kusano, Makoto Watanabe |
On-Site Speaker (Planned) |
Masahiro Kusano |
Abstract Scope |
The thermal history throughout the laser powder bed fusion (L-PBF) process determines the microstructures and material properties of the fabricated part. Therefore, the objective of this study is to develop a novel nickel-base superalloy part with unique material properties by controlling the process parameters to change the thermal history. We have developed an original subroutine program that performs feedback control on a multiscale finite element thermal analysis to pre-determine the process parameters to be controlled for the target thermal history. The actual part fabrication using the L-PBF machine with the pre-determined process parameters successfully controlled the thermal history to the target, resulting in the nickel-base superalloy part with stepwise microstructures and mechanical properties. This control procedure makes it possible to change the material properties with a conventional L-PBF machine without the use of any monitoring devices and feedback controllers. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, ICME, Copper / Nickel / Cobalt |