Abstract
Y–Co-modified aluminide coatings on nickel base superalloys were prepared by pack cementation method. Effect of Y2O3 content in the pack mixture on microstructure and hot corrosion resistance of the coatings was investigated. The results show that with the increase in Y2O3 content, the content of Co in the coatings increases. The mass gain of the coatings with Y2O3 addition of 1, 2 and 3wt.% is 0.6, 0.55 and 0.42mg/cm2 after hot corrosion at 1173K for 100h, respectively. Y2O3 addition accelerates the diffusion of Co and thus increases the hot corrosion resistance of the coating.
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.
