Microstructural evaluation and thermal oxidation behaviors of YSZ/NiCoCrAlYTa coatings deposited by different thermal techniques

• Main Authors: Mohd. Zulkifli, I. S., Mat Yajid, M. A., Idris, M. H., Uday, M. B., Daroonparvar, M., Emadzadeh, A., Arshad, A.
• Format: Article
• Published: Elsevier Ltd 2020
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://eprints.utm.my/id/eprint/92579/; http://dx.doi.org/10.1016/j.ceramint.2020.06.001

In this paper, two coating techniques, the high velocity oxy-fuel (HVOF) and air plasma spray (APS) techniques, were used to deposit a bond coat of NiCoCrAlYTa on the Inconel 625 substrate, followed by applying a topcoat of yttria-stabilized zirconia (YSZ). The samples were preoxidized in an argon-c...