| About this Abstract |
| Meeting |
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Symposium
|
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Presentation Title |
Final Chemical Composition Variations Due to the Effect of Different Power Input Rates During VIM Melting for Superalloy Investment Castings |
| Author(s) |
Oscar Caballero, Jesus Mariano Arnesto, Daniel Bernal, Pablo Garcia, Xabier Chamorro, Iñaki Hurtado, Xabier Esquisabel, Iñaki Madariaga |
| On-Site Speaker (Planned) |
Oscar Caballero |
| Abstract Scope |
The presenters have worked together in a R&D Project for relating power input rates applied in the investment casting VIM furnace with final cast parts NDT indications. The performed work was divided in three parts:
Firstly, MGEP developed a melting process model. Temperature distributions are simulated as a function of power rate inputs. Secondly these temperature differences effects are assessed. They cause different chemical reactions in the alloy and with the rest of surrounding elements (residual gases or refractories). The different times/temperatures lead so to variations on chemical compositions. Finally, those variations in chemical compositions promote the generation of different kinds and amounts of defects on the final investment casting products.
The current presentation focuses on the second part and relates (at least qualitatively) the observed chemical compositions changes when different input rates used during melting and with the defects on the so produced superalloy investment castings. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |