Development of Pt-base two layered coating for oxidation protection

Yoshitaka Matsumura; Hideyuki Murakami; Kazuki Kasai; Hiromichi Murakami; Kazuhiko Noda

doi:10.2320/jinstmet.76.321

Development of Pt-base two layered coating for oxidation protection

Yoshitaka Matsumura^*, Hideyuki Murakami, Kazuki Kasai, Hiromichi Murakami, Kazuhiko Noda

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Oxidation resistance and microstructural changes of Pt/Ni + Al two layered coatings were investigated in comparison to those of Pt diffusion coatings. The two layered coatings were successfully prepared by a two-step electroplating process, which involves Pt electroplating followed by Ni + Al-particle composite electroplating. The cross-sectional observations of specimens after the cyclic oxidation test confirmed that the two-layered coatings retarded the formation of voids, suggesting that the top Ni + Al-particle composite layer played a role as the diffusion retarder between the coated layer and the substrate. In addition, the Ni + Al-particle composite coatings preferentially accelerated the formation of the Al₂O₃ scale on the surface. These results confirmed the beneficial effect of the designed two layered coatings.

Original language	English
Pages (from-to)	321-326
Number of pages	6
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	76
Issue number	5
DOIs	https://doi.org/10.2320/jinstmet.76.321
Publication status	Published - 2012 May
Externally published	Yes

Keywords

Nickel + aluminum-particle composite coatings
Nickel-based superalloy
Oxidation microstructural change

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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10.2320/jinstmet.76.321

Cite this

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title = "Development of Pt-base two layered coating for oxidation protection",

abstract = "Oxidation resistance and microstructural changes of Pt/Ni + Al two layered coatings were investigated in comparison to those of Pt diffusion coatings. The two layered coatings were successfully prepared by a two-step electroplating process, which involves Pt electroplating followed by Ni + Al-particle composite electroplating. The cross-sectional observations of specimens after the cyclic oxidation test confirmed that the two-layered coatings retarded the formation of voids, suggesting that the top Ni + Al-particle composite layer played a role as the diffusion retarder between the coated layer and the substrate. In addition, the Ni + Al-particle composite coatings preferentially accelerated the formation of the Al2O3 scale on the surface. These results confirmed the beneficial effect of the designed two layered coatings.",

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author = "Yoshitaka Matsumura and Hideyuki Murakami and Kazuki Kasai and Hiromichi Murakami and Kazuhiko Noda",

year = "2012",

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doi = "10.2320/jinstmet.76.321",

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volume = "76",

pages = "321--326",

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T1 - Development of Pt-base two layered coating for oxidation protection

AU - Matsumura, Yoshitaka

AU - Murakami, Hideyuki

AU - Kasai, Kazuki

AU - Murakami, Hiromichi

AU - Noda, Kazuhiko

PY - 2012/5

Y1 - 2012/5

N2 - Oxidation resistance and microstructural changes of Pt/Ni + Al two layered coatings were investigated in comparison to those of Pt diffusion coatings. The two layered coatings were successfully prepared by a two-step electroplating process, which involves Pt electroplating followed by Ni + Al-particle composite electroplating. The cross-sectional observations of specimens after the cyclic oxidation test confirmed that the two-layered coatings retarded the formation of voids, suggesting that the top Ni + Al-particle composite layer played a role as the diffusion retarder between the coated layer and the substrate. In addition, the Ni + Al-particle composite coatings preferentially accelerated the formation of the Al2O3 scale on the surface. These results confirmed the beneficial effect of the designed two layered coatings.

AB - Oxidation resistance and microstructural changes of Pt/Ni + Al two layered coatings were investigated in comparison to those of Pt diffusion coatings. The two layered coatings were successfully prepared by a two-step electroplating process, which involves Pt electroplating followed by Ni + Al-particle composite electroplating. The cross-sectional observations of specimens after the cyclic oxidation test confirmed that the two-layered coatings retarded the formation of voids, suggesting that the top Ni + Al-particle composite layer played a role as the diffusion retarder between the coated layer and the substrate. In addition, the Ni + Al-particle composite coatings preferentially accelerated the formation of the Al2O3 scale on the surface. These results confirmed the beneficial effect of the designed two layered coatings.

KW - Nickel + aluminum-particle composite coatings

KW - Nickel-based superalloy

KW - Oxidation microstructural change

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Development of Pt-base two layered coating for oxidation protection

Abstract

Keywords

ASJC Scopus subject areas

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