Effect of inclusions modified by rare earth elements (Ce, La) on localized marine corrosion in Q460NH weathering steel

Chao Liu; Reynier I. Revilla; Zhiyong Liu; Dawei Zhang; Xiaogang Li; Herman Terryn

doi:10.1016/j.corsci.2017.10.001

Effect of inclusions modified by rare earth elements (Ce, La) on localized marine corrosion in Q460NH weathering steel

Chao Liu
, Reynier I. Revilla
, Zhiyong Liu^*
, Dawei Zhang
, Xiaogang Li
, Herman Terryn

^*此作品的通讯作者

University of Science and Technology Beijing
Vrije Universiteit Brussel
CAS - Ningbo Institute of Material Technology and Engineering

科研成果: 期刊稿件 › 文章 › 同行评审

317 引用（Scopus）

摘要

In this work the initial stages of the pitting corrosion in Q460NH weathering steel in a marine environment was studied. To elucidate the effects of inclusions modified by rare earth (RE) elements on pitting corrosion, field emission-scanning electron microscopy-energy dispersive spectrometry (FE-SEM-EDS) analyses, scanning Kelvin probe force microscopy (SKPFM) tests, and a series of immersion tests were conducted. Two main types of inclusions were formed in the steel, and different pit morphologies were observed. The pitting corrosion was initiated by the dissolution of (RE)₂O₂S-(RE)xSy in both types of inclusions due to the lower potential of this phase compared to the matrix, which indicated that the inclusions in the Q460NH weathering steel had a lower pitting corrosion resistance than the matrix.

源语言	英语
页（从-至）	82-90
页数	9
期刊	Corrosion Science
卷	129
DOI	https://doi.org/10.1016/j.corsci.2017.10.001
出版状态	已出版 - 12月 2017
已对外发布	是

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10.1016/j.corsci.2017.10.001

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@article{26395ffe575d43dda8c546f0ca221ad7,

title = "Effect of inclusions modified by rare earth elements (Ce, La) on localized marine corrosion in Q460NH weathering steel",

abstract = "In this work the initial stages of the pitting corrosion in Q460NH weathering steel in a marine environment was studied. To elucidate the effects of inclusions modified by rare earth (RE) elements on pitting corrosion, field emission-scanning electron microscopy-energy dispersive spectrometry (FE-SEM-EDS) analyses, scanning Kelvin probe force microscopy (SKPFM) tests, and a series of immersion tests were conducted. Two main types of inclusions were formed in the steel, and different pit morphologies were observed. The pitting corrosion was initiated by the dissolution of (RE)2O2S-(RE)xSy in both types of inclusions due to the lower potential of this phase compared to the matrix, which indicated that the inclusions in the Q460NH weathering steel had a lower pitting corrosion resistance than the matrix.",

keywords = "AFM, Carbon steel, Inclusion, Pitting corrosion, SEM",

author = "Chao Liu and Revilla, \{Reynier I.\} and Zhiyong Liu and Dawei Zhang and Xiaogang Li and Herman Terryn",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = dec,

doi = "10.1016/j.corsci.2017.10.001",

language = "英语",

volume = "129",

pages = "82--90",

journal = "Corrosion Science",

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}

TY - JOUR

T1 - Effect of inclusions modified by rare earth elements (Ce, La) on localized marine corrosion in Q460NH weathering steel

AU - Liu, Chao

AU - Revilla, Reynier I.

AU - Liu, Zhiyong

AU - Zhang, Dawei

AU - Li, Xiaogang

AU - Terryn, Herman

PY - 2017/12

Y1 - 2017/12

N2 - In this work the initial stages of the pitting corrosion in Q460NH weathering steel in a marine environment was studied. To elucidate the effects of inclusions modified by rare earth (RE) elements on pitting corrosion, field emission-scanning electron microscopy-energy dispersive spectrometry (FE-SEM-EDS) analyses, scanning Kelvin probe force microscopy (SKPFM) tests, and a series of immersion tests were conducted. Two main types of inclusions were formed in the steel, and different pit morphologies were observed. The pitting corrosion was initiated by the dissolution of (RE)2O2S-(RE)xSy in both types of inclusions due to the lower potential of this phase compared to the matrix, which indicated that the inclusions in the Q460NH weathering steel had a lower pitting corrosion resistance than the matrix.

AB - In this work the initial stages of the pitting corrosion in Q460NH weathering steel in a marine environment was studied. To elucidate the effects of inclusions modified by rare earth (RE) elements on pitting corrosion, field emission-scanning electron microscopy-energy dispersive spectrometry (FE-SEM-EDS) analyses, scanning Kelvin probe force microscopy (SKPFM) tests, and a series of immersion tests were conducted. Two main types of inclusions were formed in the steel, and different pit morphologies were observed. The pitting corrosion was initiated by the dissolution of (RE)2O2S-(RE)xSy in both types of inclusions due to the lower potential of this phase compared to the matrix, which indicated that the inclusions in the Q460NH weathering steel had a lower pitting corrosion resistance than the matrix.

KW - AFM

KW - Carbon steel

KW - Inclusion

KW - Pitting corrosion

KW - SEM

UR - https://www.scopus.com/pages/publications/85030762300

U2 - 10.1016/j.corsci.2017.10.001

DO - 10.1016/j.corsci.2017.10.001

M3 - 文章

AN - SCOPUS:85030762300

SN - 0010-938X

VL - 129

SP - 82

EP - 90

JO - Corrosion Science

JF - Corrosion Science

ER -

Effect of inclusions modified by rare earth elements (Ce, La) on localized marine corrosion in Q460NH weathering steel

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