Masset P.J.,Fraunhofer Institute for Environmental, Safety and Energy Technology |
Bleicher F.,Vienna University of Technology |
Bortolotto L.,Dechema Institute |
Geiger G.,Vienna University of Technology |
And 10 more authors.
ECS Transactions | Year: 2012
Aluminum enriched coatings have been developed for titanium aluminide alloys. It has been shown that Metal Organic Chemical Vapor Deposition (MO-CVD) and Physical Vapor Deposition (PVD) processes combined with fluorination of the coating enables to reduce significantly the embrittlement of TiAl alloys through oxidation. Even after oxidation at 900 °C for 100h, the coatings exhibit suitable adhesion and 90 % of the fracture toughness and ductility of the alloy are maintained. © The Electrochemical Society.