Recent progress in corrosion-resistant metastable alloys

Koji Hashimoto, Pyeong Yeol Park, Jin Han Kim, Hideaki Yoshioka, Hiroyuki Mitsui, Eiji Akiyama, Hiroki Habazaki, Asahi Kawashima, Katsuhiko Asami, Zbigniew Grzesik, Stanislaw Mrowec

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

Tailoring new corrosion-resistant alloys has recently been performed mostly by the sputter deposition technique. This technique is suitable for forming a single-phase solid solution even when the boiling point of one component is lower than the melting points of the other components and/or when one component is immiscible with another component in the liquid state. Aluminium-refractory metal, chromium-valve metal and molybdenum-chromium-nickel alloys have been successfully prepared in a single amorphous phase. Amorphous aluminium-refractory metal alloys are corrosion resistant in 1 M HCl and chromium-valve metal alloys are spontaneously passive in 12 M HCl, showing a better corrosion resistance in comparison with the alloy components. The amorphous aluminium-refractory metal alloys also have an extraordinarily high hot corrosion resistance. Their sulphidation resistance at higher temperatures is far higher than any other known metallic materials and their oxidation resistance is comparable to chromia- or alumina-forming alloys.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalMaterials Science and Engineering A
Volume198
Issue number1-2
DOIs
Publication statusPublished - 1995 Jul 15

Keywords

  • Al-refractory metal alloys
  • Cr-valve metal alloys
  • CrNiMo alloys
  • Oxidation
  • Spontaneous passivation
  • Sulfide corrosion

ASJC Scopus subject areas

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

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