Open AccessTungsten-rich Ni-W coatings, electrodeposited from concentrated electrolyte for complex geometry parts protection
Author(s) -
А. В. Красиков,
Margarita Merkulova,
М. А. Марков,
А. Д. Быкова
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1758/1/012019
Subject(s) - electrolyte , tungsten , nickel , materials science , metallurgy , indentation hardness , alloy , porosity , coating , chemical engineering , inorganic chemistry , chemistry , microstructure , composite material , electrode , engineering
The process of electrodeposition of nickel-tungsten coatings from a citrate electrolyte with an increased concentration of salts of the deposited metals has been investigated. Based on the results of studying the effect of pH, the ratio of the concentrations of nickel and tungsten salts in the electrolyte, the temperature of the electrolyte on the composition and current efficiency of the Ni-W alloy, optimal conditions have been determined that make it possible to obtain Ni-50% W coatings at a rate acceptable for industrial use. Evaluation of the properties of the coating showed that it is non-porous and has a microhardness of 600-640 HV.