Effect of Cr addition on microstructure and oxidation resistance of a Ti5Si3-containing MoSiBTiC alloy

Tomotaka Hatakeyama, Nobuaki Sekido, Kyosuke Yoshimi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The effect of Cr addition on the oxidation behaviour of multiphase Mo–28Ti–14Si–6C–6B (at. %) alloy composed of Mo solid solution, Mo5SiB2, Ti5Si3, and TiC phases was investigated. Replacement of 10 at. % Cr for Mo hardly changed the microstructure of the alloy and significantly enhanced its oxidation resistance at 800 °C. At 1100 °C, the Cr-added MoSiBTiC alloy showed less weight loss than the Cr-free base alloy. However, Cr addition had little effect on the substrate reduction, particularly for longer oxidation periods, due to the high volatility of Cr oxide at higher temperatures.

Original languageEnglish
Article number108418
JournalCorrosion Science
Volume166
DOIs
Publication statusPublished - 2020 Apr 15

Keywords

  • A. Alloy
  • A. Intermetallics
  • B. Weight loss
  • C. High temperature corrosion
  • C. Oxidation

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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