| About this Abstract |
| Meeting |
10th International Symposium on Superalloy 718 and Derivatives (2023)
|
| Symposium
|
Superalloy 718 and Derivatives
|
| Presentation Title |
Tensile Properties of Inconel 718 Produced by LMD-Wire |
| Author(s) |
Jonathan Cormier, Sandra Cabeza, Guillaume Burlot, Romain Bordas, Mélanie Bordas-Czaplicki, Fabio Machado Alves da Fonseca, Stefan Polenz, Franz Marquardt, Elena Lopez, Patrick Villechaise |
| On-Site Speaker (Planned) |
Jonathan Cormier |
| Abstract Scope |
The anisotropy in tensile properties of Wire Laser Metal Deposited Inconel 718 has been investigated from room temperature up to 850°C at a strain rate of 5.0 10-4 s-1. These properties have been investigated along, at 45 degrees and perpendicular to the building direction. Moreover, different heat treatments have been used: as-built, solution treated to dissolve Laves phases, solution treated + aged to trigger γ′/γ′′ precipitation and direct-aged. According to this extensive characterization of tensile properties, complemented by SEM, EDS and EBSD characterizations, it is shown that, whatever the temperature, Yield stress and tensile resistance have a very weak anisotropy and that tensile properties are mostly dependent to the prior heat treatment state. The anisotropy is only observed on elastic properties, due to a pronounced crystallographic texture inherited from the directional thermal gradient during the building process. Moreover, Laves phases do not seem to have a strong impact on tensile properties for this coarse grain material. The relative contributions of γ′/γ′′ precipitation, grain size, stored “processing” dislocations to tensile properties will be analyzed on the light of comparisons with C&W processed Inconel 718. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |