Understanding the Non-Steady Electrochemical Mechanisms of the Stress Corrosion Cracking of X70 Pipeline Steel in a Marine Environment

Bo Xu; Baozhuang Sun; Yang Dai; Fei Xie; Feng Huang; Zhiyong Liu; Xiaogang Li

doi:10.3390/ma18092073

Understanding the Non-Steady Electrochemical Mechanisms of the Stress Corrosion Cracking of X70 Pipeline Steel in a Marine Environment

Bo Xu
, Baozhuang Sun
, Yang Dai
, Fei Xie^*
, Feng Huang
, Zhiyong Liu^*
, Xiaogang Li

^*Corresponding author for this work

Key Laboratory of Oil and Gas Storage and Transportation Technology in Liaoning Province
University of Science and Technology Beijing
China Petroleum Engineering & Construction Corporation Beijing Branch
Wuhan University of Science and Technology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

In this study, a non-stationary electrochemical model was verified to be equally applicable to X70 pipeline steel under polarization potential in a marine environment, and the mechanism of stress corrosion cracking (SCC) was revealed. A quick SCC evaluation model for X70 pipeline steel in a marine environment was established. The model only requires electrochemical tests and a small number of slow strain rate tests to obtain the stress corrosion susceptibility distribution of pipeline steel across the whole potential range. The model is applicable to the marine environment and is characterized by its easy operation and accurate results.

Original language	English
Article number	2073
Journal	Materials
Volume	18
Issue number	9
DOIs	https://doi.org/10.3390/ma18092073
State	Published - May 2025
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Keywords

SCC
X70 pipeline steel
cathodic protection
hydrogen embrittlement
non-steady electrochemistry

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10.3390/ma18092073

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title = "Understanding the Non-Steady Electrochemical Mechanisms of the Stress Corrosion Cracking of X70 Pipeline Steel in a Marine Environment",

abstract = "In this study, a non-stationary electrochemical model was verified to be equally applicable to X70 pipeline steel under polarization potential in a marine environment, and the mechanism of stress corrosion cracking (SCC) was revealed. A quick SCC evaluation model for X70 pipeline steel in a marine environment was established. The model only requires electrochemical tests and a small number of slow strain rate tests to obtain the stress corrosion susceptibility distribution of pipeline steel across the whole potential range. The model is applicable to the marine environment and is characterized by its easy operation and accurate results.",

keywords = "SCC, X70 pipeline steel, cathodic protection, hydrogen embrittlement, non-steady electrochemistry",

author = "Bo Xu and Baozhuang Sun and Yang Dai and Fei Xie and Feng Huang and Zhiyong Liu and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2025 by the authors.",

year = "2025",

month = may,

doi = "10.3390/ma18092073",

language = "英语",

volume = "18",

journal = "Materials",

issn = "1996-1944",

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T1 - Understanding the Non-Steady Electrochemical Mechanisms of the Stress Corrosion Cracking of X70 Pipeline Steel in a Marine Environment

AU - Xu, Bo

AU - Sun, Baozhuang

AU - Dai, Yang

AU - Xie, Fei

AU - Huang, Feng

AU - Liu, Zhiyong

AU - Li, Xiaogang

PY - 2025/5

Y1 - 2025/5

N2 - In this study, a non-stationary electrochemical model was verified to be equally applicable to X70 pipeline steel under polarization potential in a marine environment, and the mechanism of stress corrosion cracking (SCC) was revealed. A quick SCC evaluation model for X70 pipeline steel in a marine environment was established. The model only requires electrochemical tests and a small number of slow strain rate tests to obtain the stress corrosion susceptibility distribution of pipeline steel across the whole potential range. The model is applicable to the marine environment and is characterized by its easy operation and accurate results.

AB - In this study, a non-stationary electrochemical model was verified to be equally applicable to X70 pipeline steel under polarization potential in a marine environment, and the mechanism of stress corrosion cracking (SCC) was revealed. A quick SCC evaluation model for X70 pipeline steel in a marine environment was established. The model only requires electrochemical tests and a small number of slow strain rate tests to obtain the stress corrosion susceptibility distribution of pipeline steel across the whole potential range. The model is applicable to the marine environment and is characterized by its easy operation and accurate results.

KW - SCC

KW - X70 pipeline steel

KW - cathodic protection

KW - hydrogen embrittlement

KW - non-steady electrochemistry

UR - https://www.scopus.com/pages/publications/105004906898

U2 - 10.3390/ma18092073

DO - 10.3390/ma18092073

M3 - 文章

AN - SCOPUS:105004906898

SN - 1996-1944

VL - 18

JO - Materials

JF - Materials

IS - 9

M1 - 2073

ER -

Understanding the Non-Steady Electrochemical Mechanisms of the Stress Corrosion Cracking of X70 Pipeline Steel in a Marine Environment

Abstract

UN SDGs

Keywords

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