Materials for green hydrogen fueled gas turbines through additive manufacturing
| Reference number | |
| Coordinator | Chalmers Tekniska Högskola AB - Institutionen för industri och materialvetenskap |
| Funding from Vinnova | SEK 4 750 000 |
| Project duration | May 2021 - October 2024 |
| Status | Completed |
| Venture | The strategic innovation programme for Metallic material |
| Call | Metallic materials for the electrified society |
Important results from the project
Novel PBF-LB processing developed allowed to mitigate cracking in non-weldable Ni-base superalloy Alloy 247, that was the main aim of MAGDA project. Alloy design indicate the need for further tailoring of Hf content to minimize cracking susceptibility. The developed post-AM HIP process allowed to minimize cracking during following heat treatment. Further on, established PBF-LB process and post-AM HIP treatment were successfully applied for manufacturing of demonstrator component.
Expected long term effects
Results of MAGDA project provide increased understanding of the PBF-LB processing of non-weldable Ni-base superalloys. Developed methodology for PBF-LB process development using unique laser scanning strategies can be applied to other difficult-to-process materials. MAGDA clearly demonstrated the possibility of successful PBF-LB manufacturing of non-weldable Ni-base superalloys for high temperature applications, enabling manufacturing of critical components for hydrogen fueled gas turbines.
Approach and implementation
MAGDA project was based on comprehensive approach combining academic excellence and industrial know-how in tailored alloy design, PBF-LB and post-AM HIP process development, covering the full AM value chain. Project involved optimization of the powder material for AM, integration of novel processing by PBF-LB and development of tailored post-AM HIP, supported by extensive material characterization, resulting in successful PBF-LB processing of Alloy 247, not reported in the literature until now.