Electrochemical behavior of a quasi-crystalline AlPdMn alloy in a chloride-containing solution

K. Asami, Ampo Sai, K. Hashimoto

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    The electrochemical properties of a stable quasi-crystalline AlPdMn alloy were studied by means of the potentiodynamic polarization method in a deaerated NaCl solution at 30 °C. The surface morphology and composition after polarization in the solution were observed by scanning electron microscopy combined with energy-dispersive X-ray analysis. The results were compared with those of a crystalline AlPdMn alloy and the constituent elements Al, Mn and Pd. The quasi-crystalline AlPdMn alloy cracked into small pieces during corrosion in the above solution. The cracking phenomenon was attributed to the hydrogen embrittlement caused by the combination of hydrogen evolved by the corrosion of the alloy and the internal tensile stress of the alloy. After the corrosion, both alloys were enriched in Pd on their surfaces.

    Original languageEnglish
    Pages (from-to)1141-1144
    Number of pages4
    JournalMaterials Science and Engineering A
    Volume181-182
    Issue numberC
    DOIs
    Publication statusPublished - 1994 May 15

    ASJC Scopus subject areas

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

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