Study on the Microstructural Characteristics of Some  Metallic Layers Produced Using the Electrochemical  Method and Thermal Spraying

Gheta, Roxana Alexandra; Voiculescu, Ionelia; Vasile, Ion Mihai; Chisiu, Georgiana

Roxana Alexandra Gheta, Ionelia Voiculescu, Ion Mihai Vasile, Georgiana Chisiu

Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying

Abstract:

The paper presents the comparative analysis of the microstructural particularities and the superficial characteristics (microhardness and wear resistance) of 3 methods of producing composite layers on metallic support. The aim of the research was to study the possibility of replacing the hard chromium plating process by the thermal metallization process, in order to produce layers resistant to wear and corrosion. Samples produced by hard chromium plating (layers deposited by electrolysis), samples loaded by thermal metallization with electric arc and G3Si1 wire, and samples loaded by thermal metallization with oxy-gas flame and detonation (HVOF) using tungsten carbide as filler material were used in this study.Hard chromium plating allows for high wear resistance thin layers to be produced, but the process is cumbersome and polluting. Thermal metallization allows the production of composite layers, of a chemical composition selected according to the operational demands, in much shorter times and at lower costs. In order to ensure a higher adhesion and to reduce the mechanical stresses at the support-hard layer interface, an intermediate layer of nickel was deposited in the case of samples loaded by thermal metallization with wire. In the paper, the microstructures in cross-section were analysed, the chemical compositions were determined on micro-zones related to the diffusion from the support material and the microhardness in the deposited metal and in the thermally affected zones was measured. These studies have shown that composite metallic layers displaying satisfactory mechanical and microstructural characteristics can be produced using alternative methods (thermal metallization) if optimum regime parameters are chosen.

Keywords:
thermal spraying; hard chromium plating; microstructure; chemical composition; microhardness

Issue: 2020, Volume 71, Issue 3

Pages: 166-177

Publication date: 2020/4/3

https://doi.org/10.37358/RC.20.3.7985

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
GHETA, R.A., VOICULESCU, I., VASILE, I.M., CHISIU, G., Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying, Rev. Chim., 71(3), 2020, 166-177.

Vancouver
Gheta RA, Voiculescu I, Vasile IM, Chisiu G. Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying. Rev. Chim.[internet]. 2020 Mar;71(3):166-177. Available from: https://doi.org/10.37358/RC.20.3.7985

APA 6th edition
Gheta, R.A., Voiculescu, I., Vasile, I.M. & Chisiu, G. (2020). Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying. Revista de Chimie, 71(3), 166-177. https://doi.org/10.37358/RC.20.3.7985

Harvard
Gheta, R.A., Voiculescu, I., Vasile, I.M., Chisiu, G. (2020). 'Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying', Revista de Chimie, 71(3), pp. 166-177. https://doi.org/10.37358/RC.20.3.7985

IEEE
R.A. Gheta, I. Voiculescu, I.M. Vasile, G. Chisiu, "Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying". Revista de Chimie, vol. 71, no. 3, pp. 166-177, 2020. [online]. https://doi.org/10.37358/RC.20.3.7985

Text
Roxana Alexandra Gheta, Ionelia Voiculescu, Ion Mihai Vasile, Georgiana Chisiu,
Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying,
Revista de Chimie,
Volume 71, Issue 3,
2020,
Pages 166-177,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.3.7985.
(https://revistadechimie.ro/Articles.asp?ID=7985)
Keywords: thermal spraying; hard chromium plating; microstructure; chemical composition; microhardness

RIS
TY - JOUR
T1 - Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying
A1 - Gheta, Roxana Alexandra
A2 - Voiculescu, Ionelia
A3 - Vasile, Ion Mihai
A4 - Chisiu, Georgiana
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 3
SP - 166
EP - 177
UR - https://doi.org/10.37358/RC.20.3.7985
KW - thermal spraying
KW - hard chromium plating
KW - microstructure
KW - chemical composition
KW - microhardness
ER -

BibTex
@article{RevCh2020P166,
author = {Gheta Roxana Alexandra and Voiculescu Ionelia and Vasile Ion Mihai and Chisiu Georgiana},
title = {Study on the Microstructural Characteristics of Some Metallic Layers Produced Using the Electrochemical Method and Thermal Spraying},
journal = {Revista de Chimie},
volume = {71},
number = {3},
pages = {166-177},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.3.7985},
url = {https://revistadechimie.ro/Articles.asp?ID=7985}
}

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