Crack growth behaviour and crack tip chemistry of X70 pipeline steel in near-neutral pH environment

Z. Y. Cui; Z. Y. Liu; X. Z. Wang; Q. Li; C. W. Du; X. G. Li; W. Zhang

doi:10.1080/1478422X.2015.1110963

Crack growth behaviour and crack tip chemistry of X70 pipeline steel in near-neutral pH environment

Z. Y. Cui
, Z. Y. Liu^*
, X. Z. Wang
, Q. Li
, C. W. Du
, X. G. Li
, W. Zhang

^*此作品的通讯作者

科研成果: 期刊稿件 › 文章 › 同行评审

20 引用（Scopus）

摘要

In this paper, crack growth behaviour and the crack tip chemistry of X70 pipeline steel in the near-neutral pH environment were investigated using the in-situ measurements. The stress corrosion crack propagated forward under the cyclic load, with a mean crack growth rate (CGR) of 4.28 × 10^–3 mm/cycle. The CGR da/dN obeys well with the stress corrosion fatigue mechanism. During the crack propagation, the crack tip environment differed significantly from the bulk solution. An aggressive electrolyte with low pH (about 4.0) and high concentration of Cl^– (about 3.8 M) was produced near the crack tip. These results provided the direct evidence for simulating the crack tip solution and investigating the crack tip anodic dissolution.

源语言	英语
页（从-至）	352-357
页数	6
期刊	Corrosion Engineering Science and Technology
卷	51
期	5
DOI	https://doi.org/10.1080/1478422X.2015.1110963
出版状态	已出版 - 3 7月 2016
已对外发布	是

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@article{d5354c862daf413bbeafd00ea2643a83,

title = "Crack growth behaviour and crack tip chemistry of X70 pipeline steel in near-neutral pH environment",

abstract = "In this paper, crack growth behaviour and the crack tip chemistry of X70 pipeline steel in the near-neutral pH environment were investigated using the in-situ measurements. The stress corrosion crack propagated forward under the cyclic load, with a mean crack growth rate (CGR) of 4.28 × 10–3 mm/cycle. The CGR da/dN obeys well with the stress corrosion fatigue mechanism. During the crack propagation, the crack tip environment differed significantly from the bulk solution. An aggressive electrolyte with low pH (about 4.0) and high concentration of Cl– (about 3.8 M) was produced near the crack tip. These results provided the direct evidence for simulating the crack tip solution and investigating the crack tip anodic dissolution.",

keywords = "Crack growth rate, Crack tip chemistry, Near-neutral pH, Pipeline steel",

author = "Cui, \{Z. Y.\} and Liu, \{Z. Y.\} and Wang, \{X. Z.\} and Q. Li and Du, \{C. W.\} and Li, \{X. G.\} and W. Zhang",

note = "Publisher Copyright: {\textcopyright} 2016 Institute of Materials, Minerals and Mining.",

year = "2016",

month = jul,

day = "3",

doi = "10.1080/1478422X.2015.1110963",

language = "英语",

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pages = "352--357",

journal = "Corrosion Engineering Science and Technology",

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TY - JOUR

T1 - Crack growth behaviour and crack tip chemistry of X70 pipeline steel in near-neutral pH environment

AU - Cui, Z. Y.

AU - Liu, Z. Y.

AU - Wang, X. Z.

AU - Li, Q.

AU - Du, C. W.

AU - Li, X. G.

AU - Zhang, W.

PY - 2016/7/3

Y1 - 2016/7/3

N2 - In this paper, crack growth behaviour and the crack tip chemistry of X70 pipeline steel in the near-neutral pH environment were investigated using the in-situ measurements. The stress corrosion crack propagated forward under the cyclic load, with a mean crack growth rate (CGR) of 4.28 × 10–3 mm/cycle. The CGR da/dN obeys well with the stress corrosion fatigue mechanism. During the crack propagation, the crack tip environment differed significantly from the bulk solution. An aggressive electrolyte with low pH (about 4.0) and high concentration of Cl– (about 3.8 M) was produced near the crack tip. These results provided the direct evidence for simulating the crack tip solution and investigating the crack tip anodic dissolution.

AB - In this paper, crack growth behaviour and the crack tip chemistry of X70 pipeline steel in the near-neutral pH environment were investigated using the in-situ measurements. The stress corrosion crack propagated forward under the cyclic load, with a mean crack growth rate (CGR) of 4.28 × 10–3 mm/cycle. The CGR da/dN obeys well with the stress corrosion fatigue mechanism. During the crack propagation, the crack tip environment differed significantly from the bulk solution. An aggressive electrolyte with low pH (about 4.0) and high concentration of Cl– (about 3.8 M) was produced near the crack tip. These results provided the direct evidence for simulating the crack tip solution and investigating the crack tip anodic dissolution.

KW - Crack growth rate

KW - Crack tip chemistry

KW - Near-neutral pH

KW - Pipeline steel

UR - https://www.scopus.com/pages/publications/84978511943

U2 - 10.1080/1478422X.2015.1110963

DO - 10.1080/1478422X.2015.1110963

M3 - 文章

AN - SCOPUS:84978511943

SN - 1478-422X

VL - 51

SP - 352

EP - 357

JO - Corrosion Engineering Science and Technology

JF - Corrosion Engineering Science and Technology

IS - 5

ER -

Crack growth behaviour and crack tip chemistry of X70 pipeline steel in near-neutral pH environment

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