The corrosion behavior of sputter-deposited amorphous CrNb and CrTa alloys in 12 M HCl solution

J. H. Kim, E. Akiyama, H. Habazaki, A. Kawashima, K. Asami, K. Hashimoto

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

Binary CrNb and CrTa alloys containing 29-63 at% niobium and 26-69 at% tantalum, respectively, with a single phase amorphous structure, were formed by a sputtering method. Corrosion rates of amorphous CrNb alloys were about four orders of magnitude lower than that of chromium metal and about one fifth of that of niobium metal in 12 M HCl solution. Corrosion rates of amorphous CrTa alloys were lower than that of tantalum metal and were not detected even after about 1 week immersion in 12 M HCl solution. The CrNb and CrTa alloys were spontaneously passive in 12 M HCl solution, in spite of the fact that chromium dissolved actively in 12 M HCl solution.

Original languageEnglish
Pages (from-to)1947-1955
Number of pages9
JournalCorrosion Science
Volume34
Issue number12
DOIs
Publication statusPublished - 1993 Dec

ASJC Scopus subject areas

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

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