Microstructure investigations of Pt-modified γ′-Ni3Al + γ-Ni coatings on Ni-based superalloys

dc.contributor.author Cao, Guanghui
dc.contributor.author Ou, Taoping
dc.contributor.author Jiang, Hua
dc.contributor.author Russell, Alan
dc.contributor.department Department of Materials Science and Engineering
dc.date 2018-02-13T19:38:46.000
dc.date.accessioned 2020-06-30T06:08:45Z
dc.date.available 2020-06-30T06:08:45Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2010
dc.date.embargo 2013-07-11
dc.date.issued 2010-01-01
dc.description.abstract <p>The microstructure of Pt-modified γ′-Ni<sub>3</sub>Al + γ-Ni coating on CMSX-4 single-crystal superalloy has been investigated by transmission electron microscopy (TEM). Cross-sectional TEM analyses showed the presence of precipitates in the coating. This precipitate was identified as the hexagonal topologically close-packed (TCP) μ phase with lattice parameters <em>a</em> = 0.473 nm and <em>c</em> = 2.565 nm. The energy-dispersive x-ray (EDX) spectrum of the μ phase suggested a refractory element rich compound comprising the elements Re, W, and Co. Twin domains parallel to (001) were found in the μ phase. The mechanisms of the μ phase and twinning formation were discussed.</p>
dc.description.comments <p>This article is from <em>Journal of Materials Research</em> 25 (2010): 1191–1195, doi:<a href="http://dx.doi.org/10.1557/JMR.2010.0148" target="_blank">10.1557/JMR.2010.0148</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/mse_pubs/41/
dc.identifier.articleid 1037
dc.identifier.contextkey 4999026
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath mse_pubs/41
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/55729
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/mse_pubs/41/2010_CaoG_MicrostructureInvestigations.pdf|||Sat Jan 15 00:09:16 UTC 2022
dc.source.uri 10.1557/JMR.2010.0148
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Metallurgy
dc.subject.keywords Ames Laboratory
dc.subject.keywords Coating
dc.subject.keywords Microstructure
dc.subject.keywords Transmission electron microscopy (TEM)
dc.title Microstructure investigations of Pt-modified γ′-Ni3Al + γ-Ni coatings on Ni-based superalloys
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication fb7c222e-fdb7-4931-9aa4-4bc43bea8231
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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