High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solution

The electrochemical corrosion behaviors of SA106 Grade B (SA106B) carbon steel in H2SO4-N2H4 and H2SO4-N2H4-CuSO4 solutions at 95 °C have been investigated with the addition of commercial corrosion inhibitors (CI#30 and No. 570S), to determine the stability of SA106B in the hydrazine-based reductive...

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Main Authors: Sung-Wook Kim, Sang-Yoon Park, Chang-Hyun Roh, Sun-Byeong Kim
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573323001171
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author Sung-Wook Kim
Sang-Yoon Park
Chang-Hyun Roh
Sun-Byeong Kim
author_facet Sung-Wook Kim
Sang-Yoon Park
Chang-Hyun Roh
Sun-Byeong Kim
author_sort Sung-Wook Kim
collection DOAJ
description The electrochemical corrosion behaviors of SA106 Grade B (SA106B) carbon steel in H2SO4-N2H4 and H2SO4-N2H4-CuSO4 solutions at 95 °C have been investigated with the addition of commercial corrosion inhibitors (CI#30 and No. 570S), to determine the stability of SA106B in the hydrazine-based reductive metal ion decontamination (HyBRID) process. The potentiodynamic polarization experiment revealed that the corrosion inhibitors were capable of lowering the corrosion rate of SA106B in H2SO4-N2H4 solution. It was found that the corrosion inhibitors induced formation of fixed surface layer on the carbon steel upon the corrosion. This corrosion inhibition performance was reduced in the presence of CuSO4 in the solution owing to the chemical reactions between organic compounds in the corrosion inhibitors and CuSO4. CI#30 showed a better corrosion inhibition effect in the H2SO4-N2H4-CuSO4 solution. Although the corrosion inhibitors can provide better stability to SA106B in the HyBRID solution, their application should be carefully considered because it may result in reduced decontamination performance and increased secondary waste generation.
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spelling doaj.art-81f1010b7329477a84888dc21adef1a32023-06-05T04:12:42ZengElsevierNuclear Engineering and Technology1738-57332023-06-0155622562262High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solutionSung-Wook Kim0Sang-Yoon Park1Chang-Hyun Roh2Sun-Byeong Kim3Corresponding author. Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 34057, Republic of Korea.; Korea Atomic Energy Research Institute, Republic of KoreaKorea Atomic Energy Research Institute, Republic of KoreaKorea Atomic Energy Research Institute, Republic of KoreaKorea Atomic Energy Research Institute, Republic of KoreaThe electrochemical corrosion behaviors of SA106 Grade B (SA106B) carbon steel in H2SO4-N2H4 and H2SO4-N2H4-CuSO4 solutions at 95 °C have been investigated with the addition of commercial corrosion inhibitors (CI#30 and No. 570S), to determine the stability of SA106B in the hydrazine-based reductive metal ion decontamination (HyBRID) process. The potentiodynamic polarization experiment revealed that the corrosion inhibitors were capable of lowering the corrosion rate of SA106B in H2SO4-N2H4 solution. It was found that the corrosion inhibitors induced formation of fixed surface layer on the carbon steel upon the corrosion. This corrosion inhibition performance was reduced in the presence of CuSO4 in the solution owing to the chemical reactions between organic compounds in the corrosion inhibitors and CuSO4. CI#30 showed a better corrosion inhibition effect in the H2SO4-N2H4-CuSO4 solution. Although the corrosion inhibitors can provide better stability to SA106B in the HyBRID solution, their application should be carefully considered because it may result in reduced decontamination performance and increased secondary waste generation.http://www.sciencedirect.com/science/article/pii/S1738573323001171Hydrazine-based reductive metal ion decontamination (HyBRID)Carbon steelCorrosion inhibitorElectrochemistryPotentiodynamic polarization
spellingShingle Sung-Wook Kim
Sang-Yoon Park
Chang-Hyun Roh
Sun-Byeong Kim
High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solution
Nuclear Engineering and Technology
Hydrazine-based reductive metal ion decontamination (HyBRID)
Carbon steel
Corrosion inhibitor
Electrochemistry
Potentiodynamic polarization
title High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solution
title_full High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solution
title_fullStr High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solution
title_full_unstemmed High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solution
title_short High-temperature electrochemical corrosion behavior of SA106 Grade B carbon steel with corrosion inhibitors in HyBRID solution
title_sort high temperature electrochemical corrosion behavior of sa106 grade b carbon steel with corrosion inhibitors in hybrid solution
topic Hydrazine-based reductive metal ion decontamination (HyBRID)
Carbon steel
Corrosion inhibitor
Electrochemistry
Potentiodynamic polarization
url http://www.sciencedirect.com/science/article/pii/S1738573323001171
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