Sliding wear behaviour of zinc-cobalt alloy electrodeposits

C. N. Panagopoulos, K. G. Georgarakis, S. Petroutzakou

    Research output: Contribution to journalArticlepeer-review

    24 Citations (Scopus)

    Abstract

    The wear behaviour of zinc-cobalt electrodeposited coatings on copper substrates was investigated, using a pin-on-disc wear apparatus. The composition of the zinc-cobalt alloy coatings was the following: Zn-0.6 wt.% Co and Zn-4 wt.% Co respectively. The friction coefficient of Zn-4 wt.% Co coatings against stainless steel was found to be similar to that of Zn-0.6 wt.% Co coatings against the same steel. The normalized weight loss of Zn-4 wt.% Co coatings was found to be higher than that of Zn-0.6 wt.% Co coatings. The main wear mechanism for the Zn-0.6 wt.% Co coatings was found to be severe shearing of the coatings surface layers, due to the plowing action of the stainless steel pins. For the Zn-4 wt.% Co coatings the predominant wear mechanism was noted to be intensive surface delamination leading to spalling and brittle fracture of the coatings surface layers.

    Original languageEnglish
    Pages (from-to)234-244
    Number of pages11
    JournalJournal of Materials Processing Technology
    Volume160
    Issue number2
    DOIs
    Publication statusPublished - 2005 Mar 20

    Keywords

    • Sliding wear
    • Zinc-cobalt alloy electrodeposits

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Computer Science Applications
    • Metals and Alloys
    • Industrial and Manufacturing Engineering

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