Interfacial reaction between Co-Cr-Mo alloy and liquid Al

Ning Tang, Yunping Li, Yuichiro Koizumi, Shingo Kurosu, Akihiko Chiba

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

The interfacial reaction between Co-Cr-Mo alloy and liquid Al was investigated using immersion tests. Microstructure characterization indicated that the Co-Cr-Mo alloy was corroded by liquid Al homogeneously, with the formation of a (Co,Cr,Mo)2Al9 layer close to alloy matrix and "(Cr,Mo)7Al45+Al" layer close to Al. Kinetics analysis showed that the corrosion of the Co-Cr-Mo alloy followed a linear relationship with the immersion duration. Compared with pure Co-liquid Al reaction system, the alloying of Cr and Mo changed the solid-liquid interface structure, but the corrosion of the solid metal was still dominated by the dissolution of an intermetallic layer.

Original languageEnglish
Pages (from-to)262-268
Number of pages7
JournalCorrosion Science
Volume75
DOIs
Publication statusPublished - 2013 Oct

Keywords

  • A. Aluminium
  • A. Cobalt
  • A. Intermetallics
  • B. TEM
  • C. Interfaces

ASJC Scopus subject areas

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

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