| 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 |