Development of Pt-base two layered coating for oxidation protection

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

研究成果: Article査読

抄録

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.

本文言語English
ページ(範囲)321-326
ページ数6
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
76
5
DOI
出版ステータスPublished - 2012 5

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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