Author:
Masset Patrick J.,Bleicher Friedriech,Bortolotto Laurent,Geiger Georg,Kolitsch Andreas,Langlade Cécile,Paul Jonathan,Pelic Bernadeta,Pyczak Florian,Rafaja David,Schumacher Peter,Schütze Michael,Wolf Gerhard,Yankov Rossen A.
Abstract
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.
Publisher
The Electrochemical Society