Caustic corrosion cracking of the octene tube in the fertilizer industry

Menghao Liu; Ziyang Zhang; Peilin Chai; Chuang Guo; Cuiwei Du; Zhiyong Liu; Meihui Sun; Endian Fan; Xueliang Shang; Xiaogang Li

doi:10.1016/j.engfailanal.2021.105953

Caustic corrosion cracking of the octene tube in the fertilizer industry

Menghao Liu
, Ziyang Zhang
, Peilin Chai
, Chuang Guo
, Cuiwei Du
, Zhiyong Liu^*
, Meihui Sun
, Endian Fan
, Xueliang Shang
, Xiaogang Li

^*Corresponding author for this work

University of Science and Technology Beijing

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

5 Scopus citations

Abstract

A carbon steel octene tube has leaked from the fusion zone and caused economic losses. The failure process and mechanism were investigated in this work, by means of scanning electron microscope, electron backscattered diffraction, energy-dispersive X-ray spectroscopy and Scanning Kelvin probe force microscopy. Results showed the failure was attributed to caustic corrosion cracking. The cracking mechanism is anodic dissolution mechanism, including film rupture, intergranular corrosion and repassivation processes. A less corrosion-resistant chemical composition, a larger residual stress after welding and a higher content of hydroxyl ions synthetically resulted in the cracking synthetically. Hydroxyl ions firstly reacted with passive film and caused initiation of intergranular cracks. Residual stress and intergranular corrosion result in an intergranular propagation of SCC cracks.

Original language	English
Article number	105953
Journal	Engineering Failure Analysis
Volume	133
DOIs	https://doi.org/10.1016/j.engfailanal.2021.105953
State	Published - Mar 2022
Externally published	Yes

UN SDGs

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

SDG 2 Zero Hunger

Keywords

Carbon steel
Caustic corrosion cracking
Octene tube

Access to Document

10.1016/j.engfailanal.2021.105953

Cite this

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title = "Caustic corrosion cracking of the octene tube in the fertilizer industry",

abstract = "A carbon steel octene tube has leaked from the fusion zone and caused economic losses. The failure process and mechanism were investigated in this work, by means of scanning electron microscope, electron backscattered diffraction, energy-dispersive X-ray spectroscopy and Scanning Kelvin probe force microscopy. Results showed the failure was attributed to caustic corrosion cracking. The cracking mechanism is anodic dissolution mechanism, including film rupture, intergranular corrosion and repassivation processes. A less corrosion-resistant chemical composition, a larger residual stress after welding and a higher content of hydroxyl ions synthetically resulted in the cracking synthetically. Hydroxyl ions firstly reacted with passive film and caused initiation of intergranular cracks. Residual stress and intergranular corrosion result in an intergranular propagation of SCC cracks.",

keywords = "Carbon steel, Caustic corrosion cracking, Octene tube",

author = "Menghao Liu and Ziyang Zhang and Peilin Chai and Chuang Guo and Cuiwei Du and Zhiyong Liu and Meihui Sun and Endian Fan and Xueliang Shang and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2022",

month = mar,

doi = "10.1016/j.engfailanal.2021.105953",

language = "英语",

volume = "133",

journal = "Engineering Failure Analysis",

issn = "1350-6307",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Caustic corrosion cracking of the octene tube in the fertilizer industry

AU - Liu, Menghao

AU - Zhang, Ziyang

AU - Chai, Peilin

AU - Guo, Chuang

AU - Du, Cuiwei

AU - Liu, Zhiyong

AU - Sun, Meihui

AU - Fan, Endian

AU - Shang, Xueliang

AU - Li, Xiaogang

PY - 2022/3

Y1 - 2022/3

N2 - A carbon steel octene tube has leaked from the fusion zone and caused economic losses. The failure process and mechanism were investigated in this work, by means of scanning electron microscope, electron backscattered diffraction, energy-dispersive X-ray spectroscopy and Scanning Kelvin probe force microscopy. Results showed the failure was attributed to caustic corrosion cracking. The cracking mechanism is anodic dissolution mechanism, including film rupture, intergranular corrosion and repassivation processes. A less corrosion-resistant chemical composition, a larger residual stress after welding and a higher content of hydroxyl ions synthetically resulted in the cracking synthetically. Hydroxyl ions firstly reacted with passive film and caused initiation of intergranular cracks. Residual stress and intergranular corrosion result in an intergranular propagation of SCC cracks.

AB - A carbon steel octene tube has leaked from the fusion zone and caused economic losses. The failure process and mechanism were investigated in this work, by means of scanning electron microscope, electron backscattered diffraction, energy-dispersive X-ray spectroscopy and Scanning Kelvin probe force microscopy. Results showed the failure was attributed to caustic corrosion cracking. The cracking mechanism is anodic dissolution mechanism, including film rupture, intergranular corrosion and repassivation processes. A less corrosion-resistant chemical composition, a larger residual stress after welding and a higher content of hydroxyl ions synthetically resulted in the cracking synthetically. Hydroxyl ions firstly reacted with passive film and caused initiation of intergranular cracks. Residual stress and intergranular corrosion result in an intergranular propagation of SCC cracks.

KW - Carbon steel

KW - Caustic corrosion cracking

KW - Octene tube

UR - https://www.scopus.com/pages/publications/85121522523

U2 - 10.1016/j.engfailanal.2021.105953

DO - 10.1016/j.engfailanal.2021.105953

M3 - 文章

AN - SCOPUS:85121522523

SN - 1350-6307

VL - 133

JO - Engineering Failure Analysis

JF - Engineering Failure Analysis

M1 - 105953

ER -

Caustic corrosion cracking of the octene tube in the fertilizer industry

Abstract

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Keywords

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