Effects of P addition on corrosion properties of soft magnetic FeSiB alloys

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7 Citations (Scopus)

Abstract

Electrochemical behavior of Fe76Si9B 15-xPx alloy (x = 0, 2, 5, 7, 10) ribbons in borate buffer solution of pH 8.45 had been investigated. The as-spun ribbons had an amorphous structure. The lower current densities of P-added FeSiBP ribbons with native oxide films were observed at low applied potentials. The minimum P concentration for enhancing the corrosion properties was estimated to be 5 to 7 at%. The current densities of the FeSiBP ribbons after removal of the oxide films were suppressed to lower levels in comparison with that of Fe76Si 9B15 ribbons. The formation of a phosphate-containing layer helps passivating the ribbons due to the low solubility of iron phosphate compounds.

Original languageEnglish
Pages (from-to)1691-1696
Number of pages6
JournalMaterials Transactions
Volume54
Issue number9
DOIs
Publication statusPublished - 2013 Sep 4

Keywords

  • FeSiBP soft-magnetic material
  • Iron phosphate
  • Phosphorus addition
  • Polarization measurement
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

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

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