Fundamental investigation of stress corrosion cracking of E690 steel in simulated marine thin electrolyte layer

Z. Y. Liu; W. K. Hao; W. Wu; H. Luo; X. G. Li

doi:10.1016/j.corsci.2018.12.029

Fundamental investigation of stress corrosion cracking of E690 steel in simulated marine thin electrolyte layer

Z. Y. Liu^*
, W. K. Hao
, W. Wu
, H. Luo
, X. G. Li

^*Corresponding author for this work

University of Science and Technology Beijing
Global Energy Interconnection Research Institute Co. Ltd., Beijing
Max Planck Institute for Iron Research

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

109 Scopus citations

Abstract

The mechanism of stress corrosion cracking (SCC) of E690 high-strength steel in a marine thin electrolyte layer (TEL) was investigated by performing in-situ mechanical–electrochemical tests, slow strain rate tensile (SSRT) tests, and characterization of corrosion morphology. It was concluded that E690 steel was highly sensitive to SCC, which was jointly determined by local anodic dissolution (AD) and hydrogen embrittlement (HE) both caused by dissolved O₂. In addition to these functions, hydrogen oxidation catalyzed by ferric ion was found. There was a critical oxygen concentration, approximately 21% by volume, between these two different roles. Below this value, the increase in the oxygen concentration promoted the synergistic effect of AD and HE, resulting in the increase in SCC susceptibility. However, above this value, worse general corrosion offset crack initiation as well as the oxidation of hydrogen catalyzed by ferric ions reduced the SCC susceptibility.

Original language	English
Pages (from-to)	388-396
Number of pages	9
Journal	Corrosion Science
Volume	148
DOIs	https://doi.org/10.1016/j.corsci.2018.12.029
State	Published - Mar 2019
Externally published	Yes

UN SDGs

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

SDG 14 Life Below Water

Keywords

A. Low alloy steel
B. Marine atmosphere environment
B. Offshore facility
B. Thin electrolyte layer
C. Stress corrosion cracking

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10.1016/j.corsci.2018.12.029

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title = "Fundamental investigation of stress corrosion cracking of E690 steel in simulated marine thin electrolyte layer",

abstract = "The mechanism of stress corrosion cracking (SCC) of E690 high-strength steel in a marine thin electrolyte layer (TEL) was investigated by performing in-situ mechanical–electrochemical tests, slow strain rate tensile (SSRT) tests, and characterization of corrosion morphology. It was concluded that E690 steel was highly sensitive to SCC, which was jointly determined by local anodic dissolution (AD) and hydrogen embrittlement (HE) both caused by dissolved O2. In addition to these functions, hydrogen oxidation catalyzed by ferric ion was found. There was a critical oxygen concentration, approximately 21\% by volume, between these two different roles. Below this value, the increase in the oxygen concentration promoted the synergistic effect of AD and HE, resulting in the increase in SCC susceptibility. However, above this value, worse general corrosion offset crack initiation as well as the oxidation of hydrogen catalyzed by ferric ions reduced the SCC susceptibility.",

keywords = "A. Low alloy steel, B. Marine atmosphere environment, B. Offshore facility, B. Thin electrolyte layer, C. Stress corrosion cracking",

author = "Liu, \{Z. Y.\} and Hao, \{W. K.\} and W. Wu and H. Luo and Li, \{X. G.\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2019",

month = mar,

doi = "10.1016/j.corsci.2018.12.029",

language = "英语",

volume = "148",

pages = "388--396",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Fundamental investigation of stress corrosion cracking of E690 steel in simulated marine thin electrolyte layer

AU - Liu, Z. Y.

AU - Hao, W. K.

AU - Wu, W.

AU - Luo, H.

AU - Li, X. G.

PY - 2019/3

Y1 - 2019/3

N2 - The mechanism of stress corrosion cracking (SCC) of E690 high-strength steel in a marine thin electrolyte layer (TEL) was investigated by performing in-situ mechanical–electrochemical tests, slow strain rate tensile (SSRT) tests, and characterization of corrosion morphology. It was concluded that E690 steel was highly sensitive to SCC, which was jointly determined by local anodic dissolution (AD) and hydrogen embrittlement (HE) both caused by dissolved O2. In addition to these functions, hydrogen oxidation catalyzed by ferric ion was found. There was a critical oxygen concentration, approximately 21% by volume, between these two different roles. Below this value, the increase in the oxygen concentration promoted the synergistic effect of AD and HE, resulting in the increase in SCC susceptibility. However, above this value, worse general corrosion offset crack initiation as well as the oxidation of hydrogen catalyzed by ferric ions reduced the SCC susceptibility.

AB - The mechanism of stress corrosion cracking (SCC) of E690 high-strength steel in a marine thin electrolyte layer (TEL) was investigated by performing in-situ mechanical–electrochemical tests, slow strain rate tensile (SSRT) tests, and characterization of corrosion morphology. It was concluded that E690 steel was highly sensitive to SCC, which was jointly determined by local anodic dissolution (AD) and hydrogen embrittlement (HE) both caused by dissolved O2. In addition to these functions, hydrogen oxidation catalyzed by ferric ion was found. There was a critical oxygen concentration, approximately 21% by volume, between these two different roles. Below this value, the increase in the oxygen concentration promoted the synergistic effect of AD and HE, resulting in the increase in SCC susceptibility. However, above this value, worse general corrosion offset crack initiation as well as the oxidation of hydrogen catalyzed by ferric ions reduced the SCC susceptibility.

KW - A. Low alloy steel

KW - B. Marine atmosphere environment

KW - B. Offshore facility

KW - B. Thin electrolyte layer

KW - C. Stress corrosion cracking

UR - https://www.scopus.com/pages/publications/85059332444

U2 - 10.1016/j.corsci.2018.12.029

DO - 10.1016/j.corsci.2018.12.029

M3 - 文章

AN - SCOPUS:85059332444

SN - 0010-938X

VL - 148

SP - 388

EP - 396

JO - Corrosion Science

JF - Corrosion Science

ER -

Fundamental investigation of stress corrosion cracking of E690 steel in simulated marine thin electrolyte layer

Abstract

UN SDGs

Keywords

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