| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Response of Materials Investigated Through Novel In-Situ Experiments and Modeling
|
| Presentation Title |
Spatial and Temporal Deformation Behaviour of Hybrid Wrought – Additively Manufactured Inconel 718 |
| Author(s) |
Jalal Al-Lami, Abdalrhaman Koko, Shreya Mistry , Minh-Son Pham |
| On-Site Speaker (Planned) |
Jalal Al-Lami |
| Abstract Scope |
Directed energy deposition (DED) is rising as a strong candidate for hybrid manufacturing and repair involving site-specific deposition. While such repair applications can reduce the need for replacing damaged high-value components and provide environmental and economic benefits, the widespread utilisation of hybrid (or repaired) components depends on ensuring their mechanical integrity. In this talk, I will share insights from our investigation on the in-situ and ex-situ mechanical testing of hybrid wrought-DED Inconel 718 at room temperature and 650 °C. This is complemented with detailed microstructural characterisation to study the temporal and spatial deformation behaviour of the hybrid component in relation to the local microstructure, helping to reveal underlying deformation mechanisms and the development of plastic inhomogeneity. The results reveal the direct influence of the local microstructure (including grains, dislocations, and precipitates) on the spatial strain and plastic inhomogeneity, providing new insights for optimising post-process heat treatments to improve mechanical integrity. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Mechanical Properties |