Projects SFB/Transregio 103
B6 Manufacture and properties of coatings for oxidation protection on single crystal superalloys.
The project B6 investigates protective NiCoCrAlYs layers with Co-Base superalloys and the SEBM Ni-base materials. Protective ODS (oxide dispersion strengthened) coatings will receive special attention. In addition to vacuum plasma spraying (VPS) which was used in the first funding period, the new thermal spray process cold gas spraying (CGS) will be considered. This process allows depositing coatings with compressive residual stresses, which are expected to have a positive influence on fatigue life. Project B6 will also contribute to research on rejuvenation of temperature exposed superalloys, using cold gas spraying to repair damaged Ni-base superalloys.