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Effect of heat treatment modes on the structure and microhardness of a Ni–W nanocomposite coating
https://doi.org/10.22349/1994-6716-2022-112-4-182-190
Abstract
The effect of heat treatment (annealing temperature and duration) on the structure and properties of coatings of the Ni–W system obtained by electrodeposition has been studied. It has been found that annealing results in an increase of microhardness due to hardening of the alloy matrix and precipitation of Ni4W and NiW intermetallic phases. A heat treatment mode was selected to provide maximum microhardness of 1350 HV for Ni–W coatings with a tungsten content of 44 wt %.
Keywords
electrodeposited coatings of the Ni–W system,
heat treatment,
microhardness,
intermetallic compound,
solid solution of tungsten in nickel
Supporting agencies: The study was supported by the Russian Science Foundation grant No 22-29-00800. Experimental studies were carried out on the equipment of the Center for Collective Use of Scientific Equipment “Composition, Structure and Properties of Structural and Functional Materials” of the National Research Center “Kurchatov Institute” – Central Research Institute of Structural Materials “Prometey” with the financial support of the Ministry of Science and Higher Education, agreement No 13.CKP.21.0014 (075-11- 2021-068). The unique identification number is RF-2296.61321X0014.
About the Authors
M. V. Merkulova
NRC “Kurchatov Institute” – CRISM “Prometey”; Peter the Great St Petersburg Polytechnic University
Russian Federation
Russian Federation
191015 St Petersburg, Shpalernaya St, 49
195251 St Petersburg, Polytekhnicheskaya St, 29
A. V. Krasikov
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
Cand. Sc (Chem)
191015 St Petersburg, Shpalernaya St, 49
M. S. Mikhailov
NRC “Kurchatov Institute” – CRISM “Prometey”
Russian Federation
Russian Federation
191015 St Petersburg, Shpalernaya St, 49
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Review
For citations:
Merkulova M.V., Krasikov A.V., Mikhailov M.S. Effect of heat treatment modes on the structure and microhardness of a Ni–W nanocomposite coating. Voprosy Materialovedeniya. 2022;(4(112)):182-190. (In Russ.) https://doi.org/10.22349/1994-6716-2022-112-4-182-190
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