CRACK formation in Ni-based alloys During Additive Manufacturing (DAM-CRACK)

Research Project, 2024 – 2026

DAM-CRACK assess to use advanced techniques to expand the knowledge of transient physics of cracking during solidification of L-DED. The main goals within DAM-CRACK are to: • Improve the understanding of fundamentals of cracking in Ni-based alloys • Perform in-situ experiments to gather information that indicates cracking causes in AM • Provide sufficient inputs to mitigate cracking during L-DED process within the technology development at GKN Aerospace, Sweden

Results in DAM-CRACK will allow: • To establish methods for future development, enabling the technology development in AM at GKN Aerospace • To gain suficient knowledge to provide a panoramic view of the alloy performance and its relationship to ductility changes to understand cracking during L-DED process • Future implementation in of developed Ni-based alloys for other aircraft components for commercial and military applications • The development of strategies for L-DED process optimization