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dc.contributor.authorBai, Mingwen; orcid: 0000-0002-6267-9771; email: mingwen.bai@coventry.ac.uk
dc.contributor.authorChen, Ying; email: ying.chen-2@manchester.ac.uk
dc.contributor.authorSun, Yongle; orcid: 0000-0002-8401-8069; email: yongle.sun@cranfield.ac.uk
dc.contributor.authorXiao, Ping; email: Ping.Xiao@manchester.ac.uk
dc.date.accessioned2021-06-02T02:17:37Z
dc.date.available2021-06-02T02:17:37Z
dc.date.issued2021-05-31
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/624817/additional-files.zip?sequence=2
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/624817/coatings-11-00669.xml?sequence=3
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/624817/coatings-11-00669-v2.pdf?sequence=4
dc.identifier.citationCoatings, volume 11, issue 6, page e669
dc.identifier.urihttp://hdl.handle.net/10034/624817
dc.descriptionFrom MDPI via Jisc Publications Router
dc.descriptionHistory: accepted 2021-05-28, pub-electronic 2021-05-31
dc.descriptionPublication status: Published
dc.description.abstractPt-diffused bond coat with a mixture of γ/γ’ phase has just been developed in the recent decades as a cheaper alternative to the Pt-enriched β-phase Aluminide bond coat that contains a higher content of Al. However, concerns are raised on the inevitable depletion of Pt near the coating interface that may endanger the component after long-term service. In this study, modified Pt-diffused bond coats with a single phase (γ or γ’) were made by applying selective etching on CMSX-4 single crystal superalloys prior to the electroplating of Pt. The single-phase bond coats show distinctive diffusion behaviour in comparison with the conventional γ/γ’ bond coat. Surprisingly, Pt remains more stable in the γ’-phase bond coat with significantly less depletion after diffusion, which implies a potential in saving a considerable amount of Pt. On the other hand, however, the depletion of Pt is more severe in the γ-phase bond coat. The mechanism that governs the diffusion behavior of Pt in the γ and γ’-phase was also discussed that mainly concerns with thermodynamic and kinetic factors.
dc.languageen
dc.publisherMDPI
dc.rightsLicence for this article: https://creativecommons.org/licenses/by/4.0/
dc.sourceeissn: 2079-6412
dc.subjectbond coat
dc.subjectplatinum
dc.subjectdiffusion
dc.subjectthermodynamic
dc.subjectthermal barrier coatings
dc.titleMitigation of Platinum Depletion in Platinum Diffused Single Phase Bond Coat on CMSX-4 Superalloy
dc.typearticle
dc.date.updated2021-06-02T02:17:37Z
dc.date.accepted2021-05-28


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