Comprehensive analysis of corrosion failure of blast furnace gas pipeline in a steel plant

Tianqi Chen; Liang Sun; Qing Li; Chao Liu; Zhiyong Liu; Xuequn Cheng; Xiaogang Li

doi:10.1016/j.engfailanal.2023.107651

Comprehensive analysis of corrosion failure of blast furnace gas pipeline in a steel plant

Tianqi Chen
, Liang Sun
, Qing Li
, Chao Liu^*
, Zhiyong Liu
, Xuequn Cheng
, Xiaogang Li

^*Corresponding author for this work

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

34 Scopus citations

Abstract

The corrosion failure of blast furnace gas pipeline made of Q235 carbon steel in a steel plant was investigated. Macro and micro morphology, thickness loss rate and phase composition of rust layer have been comprehensively studied. The macro and micro morphology of failed tube in service for 3.5 years were observed by laser scanning confocal microscope (LSCM), scanning electron microscope (SEM) and energy disperse spectroscopy (EDS), and chemical composition of on-site condensed water and materials was examined. Results indicated that Cl is enriched on the surface of loose corrosion products, which is composed of FeOOH and Fe₂O₃. Large thickness loss rate and corrosion gully or holes suggest that mechanism of pitting corrosion are acid chemical corrosion and electrochemical corrosion.

Original language	English
Article number	107651
Journal	Engineering Failure Analysis
Volume	154
DOIs	https://doi.org/10.1016/j.engfailanal.2023.107651
State	Published - Dec 2023
Externally published	Yes

Keywords

Blast furnace gas
Carbon steel
Corrosion failure
Pitting corrosion

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10.1016/j.engfailanal.2023.107651

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title = "Comprehensive analysis of corrosion failure of blast furnace gas pipeline in a steel plant",

abstract = "The corrosion failure of blast furnace gas pipeline made of Q235 carbon steel in a steel plant was investigated. Macro and micro morphology, thickness loss rate and phase composition of rust layer have been comprehensively studied. The macro and micro morphology of failed tube in service for 3.5 years were observed by laser scanning confocal microscope (LSCM), scanning electron microscope (SEM) and energy disperse spectroscopy (EDS), and chemical composition of on-site condensed water and materials was examined. Results indicated that Cl is enriched on the surface of loose corrosion products, which is composed of FeOOH and Fe2O3. Large thickness loss rate and corrosion gully or holes suggest that mechanism of pitting corrosion are acid chemical corrosion and electrochemical corrosion.",

keywords = "Blast furnace gas, Carbon steel, Corrosion failure, Pitting corrosion",

author = "Tianqi Chen and Liang Sun and Qing Li and Chao Liu and Zhiyong Liu and Xuequn Cheng and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

month = dec,

doi = "10.1016/j.engfailanal.2023.107651",

language = "英语",

volume = "154",

journal = "Engineering Failure Analysis",

issn = "1350-6307",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Comprehensive analysis of corrosion failure of blast furnace gas pipeline in a steel plant

AU - Chen, Tianqi

AU - Sun, Liang

AU - Li, Qing

AU - Liu, Chao

AU - Liu, Zhiyong

AU - Cheng, Xuequn

AU - Li, Xiaogang

PY - 2023/12

Y1 - 2023/12

N2 - The corrosion failure of blast furnace gas pipeline made of Q235 carbon steel in a steel plant was investigated. Macro and micro morphology, thickness loss rate and phase composition of rust layer have been comprehensively studied. The macro and micro morphology of failed tube in service for 3.5 years were observed by laser scanning confocal microscope (LSCM), scanning electron microscope (SEM) and energy disperse spectroscopy (EDS), and chemical composition of on-site condensed water and materials was examined. Results indicated that Cl is enriched on the surface of loose corrosion products, which is composed of FeOOH and Fe2O3. Large thickness loss rate and corrosion gully or holes suggest that mechanism of pitting corrosion are acid chemical corrosion and electrochemical corrosion.

AB - The corrosion failure of blast furnace gas pipeline made of Q235 carbon steel in a steel plant was investigated. Macro and micro morphology, thickness loss rate and phase composition of rust layer have been comprehensively studied. The macro and micro morphology of failed tube in service for 3.5 years were observed by laser scanning confocal microscope (LSCM), scanning electron microscope (SEM) and energy disperse spectroscopy (EDS), and chemical composition of on-site condensed water and materials was examined. Results indicated that Cl is enriched on the surface of loose corrosion products, which is composed of FeOOH and Fe2O3. Large thickness loss rate and corrosion gully or holes suggest that mechanism of pitting corrosion are acid chemical corrosion and electrochemical corrosion.

KW - Blast furnace gas

KW - Carbon steel

KW - Corrosion failure

KW - Pitting corrosion

UR - https://www.scopus.com/pages/publications/85172004043

U2 - 10.1016/j.engfailanal.2023.107651

DO - 10.1016/j.engfailanal.2023.107651

M3 - 文章

AN - SCOPUS:85172004043

SN - 1350-6307

VL - 154

JO - Engineering Failure Analysis

JF - Engineering Failure Analysis

M1 - 107651

ER -

Comprehensive analysis of corrosion failure of blast furnace gas pipeline in a steel plant

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Keywords

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