Adhesion Improvement of Nickel Electrodeposited on Aluminum Alloy 7075 by Modified Single Zincating Process

(Switzerland: Trans Tech Publications, 2016), 11 page(s)

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Abstract / Summary: The time-transition curve of open circuit potential (Eoc) during the single zincating process of aluminium alloy 7075 (AA7075) was recorded. Then, a suitable single zincating duration was selected from the Eoc slope, in order to get the optimum zincating duration. The evolution of surface morphology and composition of AA7075 substrate at various single zincating durations were characterized by scanning electron microscopy (SEM) and energy dispersive analysis of x- rays (EDX). The coating adhesions of single zincated samples produced at various durations were investigated using a scratch tester. SEM results showed that the substrates produced at a longer zincating duration were fully covered by a dense layer of zinc particles. The adhesion of the electrodeposited nickel on single zincated samples produced at longer zincating duration was higher than the conventional single zincating process. This morphology has contributed to the improvement of coating adhesion.
Field of Interest: Global Issues
Content Type: Periodical article
Duration: 0 sec
Format: Text
Page Count: 11
Publication Year: 2016
Publisher: Trans Tech Publications
Place Published / Released: Switzerland
Subject: Global Issues, Engineering, Social Sciences, Science & Engineering, Materials Science, Engineering, Ciência dos Materiais, Ciencia de Materiales
Keywords and Translated Subjects: Ciência dos Materiais, Ciencia de Materiales