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REVISTA DE CHIMIE
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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2021, Volume 72, Issue 1, 1-17

https://doi.org/10.37358/RC.21.1.8399

Mihai Iordoc, Georgiana Marin, Georgeta Stoianovici, Paula Prioteasa, Cristinel Balan, Marian Guta, Radu Furtuna

Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors

Abstract:

Studies of the corrosion initiation at the pressure hydraulic test of pressure vessels during their filling, maintaining and draining are presented. It has been established that the most suitable method involves the use of corrosion inhibitors, which directly decrease the corrosion rate even in small or very small quantities. It was studied the influence of some corrosion inhibitors at different concentrations on some steel materials commonly used at pressure vessels manufacturing. The study involved the inhibitors testing both in laboratory and in factory conditions. Testing in laboratory conditions involved the analysis of the following inhibitors: urea, thiourea, triethanolamine, FINEAMIN 88 and FINEAMIN 06. The results were compared with those of the Adirol inhibitor, the currently used inhibitor. It was investigated the corrosion of the following stainless steels and unalloyed steels: A 240 grade 304, A 240 grade 316, A 516 grade 70, A 516 grade 60, P260-GH, P265, P275, P295-GH, P295, and P355. By recording the potentiodynamic polarization curves, the corrosion parameters (corrosion potential, corrosion current density, polarization resistance, corrosion rate, charge transfer coefficients for anodic and cathodic processes, inhibitors acting coefficients, and inhibition efficiencies) have been evaluated. The following corrosion inhibitor solutions were selected for testing under the factory specific conditions: Instal Protect SP at concentrations of 5%, 7.5% and 10%, ELG INCOR SP at 10% concentration, FINEAMIN 06 at 10/00 concentration and a mixture of 40mL FINEAMIN 06 + 40 mL FINEAMIN 88 SCAV25 in 40 L water. The analysed steels were A 106 grade B and A 283 grade C. Tests in laboratory conditions revealed a different behaviour of the inhibitors, depending on the analysed concentration and steel grade. The inhibitors proven as appropriate following the tests in the factory conditions were ELG INCOR SP used in industrial water (tap water), whereas the mixture of FINEAMIN 06 + FINEAMIN 88 SCAV25 had efficiency only in demineralised water.
Keywords:
pressure vessel corrosion; potentiodynamic polarization; steel; corrosion inhibitors; hydrostatic pressure testing

Issue: 2021, Volume 72, Issue 1
Pages: 1-17
Publication date: 2021/2/3
https://doi.org/10.37358/RC.21.1.8399
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Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
IORDOC, M., MARIN, G., STOIANOVICI, G., PRIOTEASA, P., BALAN, C., GUTA, M., FURTUNA, R., Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors, Rev. Chim., 72(1), 2021, 1-17.

Vancouver
Iordoc M, Marin G, Stoianovici G, Prioteasa P, Balan C, Guta M, Furtuna R. Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors. Rev. Chim.[internet]. 2021 Jan;72(1):1-17. Available from: https://doi.org/10.37358/RC.21.1.8399


APA 6th edition
Iordoc, M., Marin, G., Stoianovici, G., Prioteasa, P., Balan, C., Guta, M. & Furtuna, R. (2021). Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors. Revista de Chimie, 72(1), 1-17. https://doi.org/10.37358/RC.21.1.8399


Harvard
Iordoc, M., Marin, G., Stoianovici, G., Prioteasa, P., Balan, C., Guta, M., Furtuna, R. (2021). 'Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors', Revista de Chimie, 72(1), pp. 1-17. https://doi.org/10.37358/RC.21.1.8399


IEEE
M. Iordoc, G. Marin, G. Stoianovici, P. Prioteasa, C. Balan, M. Guta, R. Furtuna, "Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors". Revista de Chimie, vol. 72, no. 1, pp. 1-17, 2021. [online]. https://doi.org/10.37358/RC.21.1.8399


Text
Mihai Iordoc, Georgiana Marin, Georgeta Stoianovici, Paula Prioteasa, Cristinel Balan, Marian Guta, Radu Furtuna,
Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors,
Revista de Chimie,
Volume 72, Issue 1,
2021,
Pages 1-17,
ISSN 2668-8212,
https://doi.org/10.37358/RC.21.1.8399.
(https://revistadechimie.ro/Articles.asp?ID=8399)
Keywords: pressure vessel corrosion; potentiodynamic polarization; steel; corrosion inhibitors; hydrostatic pressure testing


RIS
TY - JOUR
T1 - Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors
A1 - Iordoc, Mihai
A2 - Marin, Georgiana
A3 - Stoianovici, Georgeta
A4 - Prioteasa, Paula
A5 - Balan, Cristinel
A6 - Guta, Marian
A7 - Furtuna, Radu
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2021
VL - 72
IS - 1
SP - 1
EP - 17
UR - https://doi.org/10.37358/RC.21.1.8399
KW - pressure vessel corrosion
KW - potentiodynamic polarization
KW - steel
KW - corrosion inhibitors
KW - hydrostatic pressure testing
ER -


BibTex
@article{RevCh2021P1,
author = {Iordoc Mihai and Marin Georgiana and Stoianovici Georgeta and Prioteasa Paula and Balan Cristinel and Guta Marian and Furtuna Radu},
title = {Increasing Corrosion Resistance of Pressure Vessels at the Hydrostatic Pressure Testing by Using Inhibitors},
journal = {Revista de Chimie},
volume = {72},
number = {1},
pages = {1-17},
year = {2021},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.21.1.8399},
url = {https://revistadechimie.ro/Articles.asp?ID=8399}
}
 
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