Effects of P Addition on Corrosion Properties of Soft Magnetic FeSiB Alloys

• Dan Zhenhua

  Institute for Materials Research, Tohoku University

• Makino Akihiro

  Institute for Materials Research, Tohoku University

• Hara Nobuyoshi

  Department of Materials Science, Tohoku University

Abstract

Electrochemical behavior of Fe₇₆Si₉B_15−xP_x 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 Fe₇₆Si₉B₁₅ ribbons. The formation of a phosphate-containing layer helps passivating the ribbons due to the low solubility of iron phosphate compounds.

Journal

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 54 (9), 1691-1696, 2013

  The Japan Institute of Metals and Materials

Keywords

• FeSiBP soft-magnetic material
• X-ray photoelectron spectroscopy
• polarization measurement
• phosphorus addition
• iron phosphate

Details

• CRID: 1390282679226386304
• NII Article ID: 10031194657
• NII Book ID: AA1151294X
• DOI: 10.2320/matertrans.maw201307
• COI: 1:CAS:528:DC%2BC3sXhslejtrnE
• ISSN: 13475320
• ISSN: 13459678
• NDL BIB ID: 024795274
• Web Site: http://id.ndl.go.jp/bib/024795274
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024795274
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/54/9/54_MAW201307/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed