Cyclic corrosion behavior of Pt/Ru-modified bond coatings exposed to NaCl plus water vapor at 1050°C

Yingxue Song, H. Murakami, Chungen Zhou

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In the present investigation, Pt/Ru-modified bond coating consisted of 2 μm Pt+2 μm Ru was deposited on a nickel-based superalloy by electroplating method and followed by conventional Al pack cementation. The cyclic corrosion behavior of Pt/Ru-modified bond coating exposed to NaCl plus water vapor has been investigated under atmospheric pressure at 1050°C. The result shows that the cyclic corrosion life of Pt/Ru-modified bond coating is longer than that of the conventional Pt-modified aluminide coating in the presence of NaCl plus water vapor. The addition of Ru makes the coating possess the increased strength and suppress the rumpling behavior. The absence of rumpling may be responsible for the improved corrosion resistance of Pt/Ru-modified aluminide coating.

Original languageEnglish
Pages (from-to)217-222
Number of pages6
JournalJournal of Materials Science and Technology
Volume26
Issue number3
DOIs
Publication statusPublished - 2010 Mar
Externally publishedYes

Keywords

  • Cyclic corrosion behavior
  • NaCl plus water vapor
  • Nickel-based superalloy
  • Pt/Ru-modified bond coating

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Polymers and Plastics
  • Metals and Alloys
  • Materials Chemistry

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