MICROMORPHOLOGICAL STUDY OF SELECTIVE DISSOLUTION OF Cu FROM CuPd-ALLOYS.

B. Kabius, H. Kaiser, H. Kaesche

Research output: Contribution to journalConference article

14 Scopus citations

Abstract

The selective corrosion of a series of CuPd-alloys has been studied by transmission electron microscopy. A special specimen preparation has been applied to avoid surface segregation of palladium and other surface layers. This investigation was carried out in the low current region as well as in the region above the critical potential of selective corrosion. In the latter case the typical morphology of selective corrosion, as observed by other authors, was confirmed. A quite similar, yet less pronounced corrosion attack was, however, detected in the low current region. As revealed by dark field microscopy, apparently unattacked parts of the surface were covered with Pd-crystallites. These crystallites as well as the dissolution nuclei were crystallographically orientated along low-indexed directions.

Original languageEnglish (US)
Pages (from-to)562-573
Number of pages12
JournalProceedings - The Electrochemical Society
Volume86-7
StatePublished - Dec 1 1986

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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