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Quantitative Analysis of Chemical and Phase Composition of Zn−Ni Alloy Coating by Potentiodynamic Stripping
Author(s) -
Maizelis Antonina,
Kolupaieva Zoia
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.202060195
Subject(s) - dissolution , alloy , zinc , electrolyte , nickel , stripping (fiber) , ammonia , phase (matter) , materials science , inorganic chemistry , metallurgy , chemistry , electrode , organic chemistry , composite material
We propose quantitative analysis of chemical and phase composition of Zn−Ni alloy depending on the film thickness, using potentiodynamic stripping in an alkaline ammonia‐glycinate electrolyte. The mechanism of dissolution of zinc‐enriched Zn−Ni alloy films in this electrolyte comprises sequential stages of dissolution of zinc‐phase and zinc from a γ ‐phase of various structures, followed by dissolution of the nickel‐enriched residue, formed by dezincification, and matrix nickel.