Abstract
The oxidation resistance of Ni‐base superalloys with Al‐contents of 2–5 wt% is commonly improved by the use of Al‐rich coatings. An alternative way has been proposed by using the halogen effect. In this case, the Al activity on the alloy surface is increased by the transport of Al via gaseous Al‐halides. Fluorine was chosen because of the good results obtained in the case of TiAl. The fluorine was applied by ion implantation. After oxidation at 1050 °C a dense protective alumina scale was formed on the surface of the alloy IN738. The fluorine effect was combined with the reactive element effect to improve the adherence of the alumina scale.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
