Degradation of the oxide film formed on Alloy 690TT in a high-temperature chloride solution

Qiang Hou; Zhiyong Liu; Chengtao Li; Xiaogang Li; Jiamin Shao

doi:10.1016/j.apsusc.2018.10.196

Degradation of the oxide film formed on Alloy 690TT in a high-temperature chloride solution

Qiang Hou
, Zhiyong Liu^*
, Chengtao Li
, Xiaogang Li
, Jiamin Shao

^*Corresponding author for this work

University of Science and Technology Beijing
Shougang Group
Suzhou Nuclear Power Research Institute Co., Ltd.
CAS - Ningbo Institute of Material Technology and Engineering

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

17 Scopus citations

Abstract

Comparative analyses are adopted to examine the influences of Cl ⁻ on the degradation of the film on Alloy 690TT in high-temperature water. According to the results of surface analyses and TEM, the composition and structure of the oxide film formed in a chloride solution are determined. Unlike the duplex layer oxide film formed on the sample in pure water, a thinner and monolayer Cr-rich oxide scale with several little corrosion pits on the surface is formed, which is closely related to the adsorption of Cl ⁻ ions due to their affinity to material surface and the selective dissolution of Ni-rich oxides.

Original language	English
Pages (from-to)	1104-1112
Number of pages	9
Journal	Applied Surface Science
Volume	467-468
DOIs	https://doi.org/10.1016/j.apsusc.2018.10.196
State	Published - 15 Feb 2019
Externally published	Yes

Keywords

High temperature corrosion
Nickel
Pitting corrosion
TEM
XPS

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10.1016/j.apsusc.2018.10.196

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title = "Degradation of the oxide film formed on Alloy 690TT in a high-temperature chloride solution",

abstract = " Comparative analyses are adopted to examine the influences of Cl − on the degradation of the film on Alloy 690TT in high-temperature water. According to the results of surface analyses and TEM, the composition and structure of the oxide film formed in a chloride solution are determined. Unlike the duplex layer oxide film formed on the sample in pure water, a thinner and monolayer Cr-rich oxide scale with several little corrosion pits on the surface is formed, which is closely related to the adsorption of Cl − ions due to their affinity to material surface and the selective dissolution of Ni-rich oxides.",

keywords = "High temperature corrosion, Nickel, Pitting corrosion, TEM, XPS",

author = "Qiang Hou and Zhiyong Liu and Chengtao Li and Xiaogang Li and Jiamin Shao",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

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doi = "10.1016/j.apsusc.2018.10.196",

language = "英语",

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T1 - Degradation of the oxide film formed on Alloy 690TT in a high-temperature chloride solution

AU - Hou, Qiang

AU - Liu, Zhiyong

AU - Li, Chengtao

AU - Li, Xiaogang

AU - Shao, Jiamin

PY - 2019/2/15

Y1 - 2019/2/15

N2 - Comparative analyses are adopted to examine the influences of Cl − on the degradation of the film on Alloy 690TT in high-temperature water. According to the results of surface analyses and TEM, the composition and structure of the oxide film formed in a chloride solution are determined. Unlike the duplex layer oxide film formed on the sample in pure water, a thinner and monolayer Cr-rich oxide scale with several little corrosion pits on the surface is formed, which is closely related to the adsorption of Cl − ions due to their affinity to material surface and the selective dissolution of Ni-rich oxides.

AB - Comparative analyses are adopted to examine the influences of Cl − on the degradation of the film on Alloy 690TT in high-temperature water. According to the results of surface analyses and TEM, the composition and structure of the oxide film formed in a chloride solution are determined. Unlike the duplex layer oxide film formed on the sample in pure water, a thinner and monolayer Cr-rich oxide scale with several little corrosion pits on the surface is formed, which is closely related to the adsorption of Cl − ions due to their affinity to material surface and the selective dissolution of Ni-rich oxides.

KW - High temperature corrosion

KW - Nickel

KW - Pitting corrosion

KW - TEM

KW - XPS

UR - https://www.scopus.com/pages/publications/85055885709

U2 - 10.1016/j.apsusc.2018.10.196

DO - 10.1016/j.apsusc.2018.10.196

M3 - 文章

AN - SCOPUS:85055885709

SN - 0169-4332

VL - 467-468

SP - 1104

EP - 1112

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Degradation of the oxide film formed on Alloy 690TT in a high-temperature chloride solution

Abstract

Keywords

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