Single Crystal Laser Welding (B05)

• Subject Area: Glass, Ceramics and Derived Composites ; Production Automation and Assembly Technology
• Term: from 2010 to 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 119193472

High pressure turbine blades are subject to the highest temperatures in modern gas turbines resulting in erosion, wear and cracking. During the course of the first two funding periods, sub-project B5 developed a repair mechanism using the combination of laser metal deposition (LMD) and laser melting. The 3rd funding period aims at analysing the evolution of the microstructure of regenerated samples compared to single-crystal substrate material during heat treatment, and quantifying their mechanical and thermo-mechanical properties with the aim of further optimising the regeneration process.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 871: Regeneration of Complex Capital Goods
• Applicant Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Project Heads: Professor Dr.-Ing. Stefan Kaierle; Professor Dr.-Ing. Volker Wesling