| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
F-5: Iron-based Shape Memory Alloy Coatings for Forging Dies |
| Author(s) |
Willow N. Knight, Michael Wall, Sameehan S. Joshi, Andy Spires, Rob Mayer, Narendra Dahotre, Marcus L. Young |
| On-Site Speaker (Planned) |
Willow N. Knight |
| Abstract Scope |
Due to their unique properties, like the shape memory effect and pseudoelasticity, shape-memory alloys (SMAs) can be utilized for a variety of applications, like to repair and act as a protective coating on forging dies. Additive manufacturing processes, which result in distinctive microstructures, can be used to coat die heads. In this study, the efficacy of iron-based SMA coatings on forging die lifetime extension was evaluated, as well as the impact of deposition method: laser coating vs directed energy deposition. To characterize the coatings, scanning electron microscopy with energy dispersive spectroscopy was used to view the coating quality, elemental distribution, and microstructure. Hardness profiles from the coating into the bulk metal (H13 and FX-T2 steels) were obtained. X-ray diffraction was used to determine the phases present and differential scanning calorimetry was used to determine transformation temperatures. CALPHAD thermodynamic simulations and finite element analysis were also performed on the system. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Surface Modification and Coatings, |