Corrosion behavior of N6 and monel400 Nickel alloy in deep sea environment of South China Sea

Feilong Sun; Lin Lu; Xiaogang Li; Kui Xiao; Junsheng Wu; Song Wang

Corrosion behavior of N6 and monel400 Nickel alloy in deep sea environment of South China Sea

Feilong Sun
, Lin Lu
, Xiaogang Li^*
, Kui Xiao
, Junsheng Wu
, Song Wang

^*Corresponding author for this work

University of Science and Technology Beijing

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

7 Scopus citations

Abstract

The corrosion behavior of N6 nickel and Monel400 nickel alloy in 800 and 1200 m deep sea environment of South China Sea was studied by field test. The morphology and composition of corrosion product were examined by means of SEM, EDS and XRD techniques. The results indicated that the resistance to localized corrosion of Monel400 nickel alloy was better than that of N6 nickel. The green corrosion product of N6 nickel was composed of NiCl₂·6H₂O with a small amount of CaCO₃ and MgCO₃, under which severe tunnel corrosion occurred, while localized corrosion induced perforation even took place on N6 nickel samples. However, shallow and large size corrosion pits formed on Monel400 nickel alloy, which were covered by green corrosion product consisted of (CuNi)₂Cl(OH)₃. Comparing with the data of literatures, the maximum pit depth of N6 and Monel400 nickel alloy decreased as the depth of test side increased.

Original language	English
Pages (from-to)	165-170
Number of pages	6
Journal	Journal of the Chinese Society of Corrosion and Protection
Volume	34
Issue number	2
State	Published - 2014
Externally published	Yes

Keywords

Deep sea
Field test
Nickel alloy
Pitting corrosion
Tunnel corrosion

Cite this

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title = "Corrosion behavior of N6 and monel400 Nickel alloy in deep sea environment of South China Sea",

abstract = "The corrosion behavior of N6 nickel and Monel400 nickel alloy in 800 and 1200 m deep sea environment of South China Sea was studied by field test. The morphology and composition of corrosion product were examined by means of SEM, EDS and XRD techniques. The results indicated that the resistance to localized corrosion of Monel400 nickel alloy was better than that of N6 nickel. The green corrosion product of N6 nickel was composed of NiCl2·6H2O with a small amount of CaCO3 and MgCO3, under which severe tunnel corrosion occurred, while localized corrosion induced perforation even took place on N6 nickel samples. However, shallow and large size corrosion pits formed on Monel400 nickel alloy, which were covered by green corrosion product consisted of (CuNi)2Cl(OH)3. Comparing with the data of literatures, the maximum pit depth of N6 and Monel400 nickel alloy decreased as the depth of test side increased.",

keywords = "Deep sea, Field test, Nickel alloy, Pitting corrosion, Tunnel corrosion",

author = "Feilong Sun and Lin Lu and Xiaogang Li and Kui Xiao and Junsheng Wu and Song Wang",

year = "2014",

language = "英语",

volume = "34",

pages = "165--170",

journal = "Journal of the Chinese Society of Corrosion and Protection",

issn = "1005-4537",

publisher = "Chinese Society of Corrosion and Protection",

number = "2",

}

TY - JOUR

T1 - Corrosion behavior of N6 and monel400 Nickel alloy in deep sea environment of South China Sea

AU - Sun, Feilong

AU - Lu, Lin

AU - Li, Xiaogang

AU - Xiao, Kui

AU - Wu, Junsheng

AU - Wang, Song

PY - 2014

Y1 - 2014

N2 - The corrosion behavior of N6 nickel and Monel400 nickel alloy in 800 and 1200 m deep sea environment of South China Sea was studied by field test. The morphology and composition of corrosion product were examined by means of SEM, EDS and XRD techniques. The results indicated that the resistance to localized corrosion of Monel400 nickel alloy was better than that of N6 nickel. The green corrosion product of N6 nickel was composed of NiCl2·6H2O with a small amount of CaCO3 and MgCO3, under which severe tunnel corrosion occurred, while localized corrosion induced perforation even took place on N6 nickel samples. However, shallow and large size corrosion pits formed on Monel400 nickel alloy, which were covered by green corrosion product consisted of (CuNi)2Cl(OH)3. Comparing with the data of literatures, the maximum pit depth of N6 and Monel400 nickel alloy decreased as the depth of test side increased.

AB - The corrosion behavior of N6 nickel and Monel400 nickel alloy in 800 and 1200 m deep sea environment of South China Sea was studied by field test. The morphology and composition of corrosion product were examined by means of SEM, EDS and XRD techniques. The results indicated that the resistance to localized corrosion of Monel400 nickel alloy was better than that of N6 nickel. The green corrosion product of N6 nickel was composed of NiCl2·6H2O with a small amount of CaCO3 and MgCO3, under which severe tunnel corrosion occurred, while localized corrosion induced perforation even took place on N6 nickel samples. However, shallow and large size corrosion pits formed on Monel400 nickel alloy, which were covered by green corrosion product consisted of (CuNi)2Cl(OH)3. Comparing with the data of literatures, the maximum pit depth of N6 and Monel400 nickel alloy decreased as the depth of test side increased.

KW - Deep sea

KW - Field test

KW - Nickel alloy

KW - Pitting corrosion

KW - Tunnel corrosion

UR - https://www.scopus.com/pages/publications/84940321906

M3 - 文章

AN - SCOPUS:84940321906

SN - 1005-4537

VL - 34

SP - 165

EP - 170

JO - Journal of the Chinese Society of Corrosion and Protection

JF - Journal of the Chinese Society of Corrosion and Protection

IS - 2

ER -

Corrosion behavior of N6 and monel400 Nickel alloy in deep sea environment of South China Sea

Abstract

Keywords

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