Oxidation resistance of Mo coated with Mo(Si,Al) 2 layer prepared by dipping into liquid of Al-25 mass%Si alloy

Shinsuke Kunitsugu, Norihide Nishida, Takao Tomiya, Masahiro Nagae, Makoto Nakanishi, Tatsuo Fujii, Jun Takada

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A homogeneous layer of molybdenum alumininosilicide Mo(Si,Al) 2 with C(40) structure was made on the sample surface of molybdenum by dip-coating technique using Al-25mass%Si liquid at 1123K. Adherent Al-Si was removed by soaking the dipped samples in the NaOH saturated hydraulic solution. The Mo samples coated with the Mo(Si,Al) 2 layer were found to have excellent oxidation resistance in air even at 1473 K due to formation of a dense alumina film on the sample surface during oxidation. The formation of Mo 5(Si,Al) 3 layer was also observed at the interface between the Mo substrate and the Mo(Si,Al) 2 layer.

Original languageEnglish
Pages (from-to)215-218
Number of pages4
JournalMaterials Transactions
Volume46
Issue number2
DOIs
Publication statusPublished - Feb 1 2005

Keywords

  • Aluminum-silicon alloy
  • Dip-coating
  • Molybdenum aluminosilicide
  • Oxidation resistance

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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