Fundamental understanding on the effect of Cr on corrosion resistance of weathering steel in simulated tropical marine atmosphere

Meihui Sun; Cuiwei Du; Zhiyong Liu; Chao Liu; Xiaogang Li; Yumin Wu

doi:10.1016/j.corsci.2021.109427

Fundamental understanding on the effect of Cr on corrosion resistance of weathering steel in simulated tropical marine atmosphere

Meihui Sun
, Cuiwei Du^*
, Zhiyong Liu
, Chao Liu
, Xiaogang Li
, Yumin Wu

^*Corresponding author for this work

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

233 Scopus citations

Abstract

The role of Cr on the corrosion resistance of weathering steel in simulated tropical marine atmosphere was investigated by the dry/wet cyclic corrosion test. The addition of Cr in steel greatly promotes the transformation of α-FeOOH. Cr-doped α-(Fe,Cr)OOH and FeCr₂O₄ present spherical particles of about ten nanometers, improving the compactness of the rust layer. Cr forms Cr₂O₃ and Cr(OH)₃ with good corrosion resistance, and promotes the enrichment of Cu to form CuO in the inner rust layer. These products increase the nucleation position and effectively refine the rust grains, leading to the increase of diffusion resistance for corrosive species.

Original language	English
Article number	109427
Journal	Corrosion Science
Volume	186
DOIs	https://doi.org/10.1016/j.corsci.2021.109427
State	Published - 1 Jul 2021
Externally published	Yes

UN SDGs

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

SDG 14 Life Below Water

Keywords

Corrosion resistance
Cr adding
Marine atmospheric environment
Weathering steel

Access to Document

10.1016/j.corsci.2021.109427

Cite this

@article{073bae2538d64238be6d6a752badaa0f,

title = "Fundamental understanding on the effect of Cr on corrosion resistance of weathering steel in simulated tropical marine atmosphere",

abstract = "The role of Cr on the corrosion resistance of weathering steel in simulated tropical marine atmosphere was investigated by the dry/wet cyclic corrosion test. The addition of Cr in steel greatly promotes the transformation of α-FeOOH. Cr-doped α-(Fe,Cr)OOH and FeCr2O4 present spherical particles of about ten nanometers, improving the compactness of the rust layer. Cr forms Cr2O3 and Cr(OH)3 with good corrosion resistance, and promotes the enrichment of Cu to form CuO in the inner rust layer. These products increase the nucleation position and effectively refine the rust grains, leading to the increase of diffusion resistance for corrosive species.",

keywords = "Corrosion resistance, Cr adding, Marine atmospheric environment, Weathering steel",

author = "Meihui Sun and Cuiwei Du and Zhiyong Liu and Chao Liu and Xiaogang Li and Yumin Wu",

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

year = "2021",

month = jul,

day = "1",

doi = "10.1016/j.corsci.2021.109427",

language = "英语",

volume = "186",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Fundamental understanding on the effect of Cr on corrosion resistance of weathering steel in simulated tropical marine atmosphere

AU - Sun, Meihui

AU - Du, Cuiwei

AU - Liu, Zhiyong

AU - Liu, Chao

AU - Li, Xiaogang

AU - Wu, Yumin

PY - 2021/7/1

Y1 - 2021/7/1

N2 - The role of Cr on the corrosion resistance of weathering steel in simulated tropical marine atmosphere was investigated by the dry/wet cyclic corrosion test. The addition of Cr in steel greatly promotes the transformation of α-FeOOH. Cr-doped α-(Fe,Cr)OOH and FeCr2O4 present spherical particles of about ten nanometers, improving the compactness of the rust layer. Cr forms Cr2O3 and Cr(OH)3 with good corrosion resistance, and promotes the enrichment of Cu to form CuO in the inner rust layer. These products increase the nucleation position and effectively refine the rust grains, leading to the increase of diffusion resistance for corrosive species.

AB - The role of Cr on the corrosion resistance of weathering steel in simulated tropical marine atmosphere was investigated by the dry/wet cyclic corrosion test. The addition of Cr in steel greatly promotes the transformation of α-FeOOH. Cr-doped α-(Fe,Cr)OOH and FeCr2O4 present spherical particles of about ten nanometers, improving the compactness of the rust layer. Cr forms Cr2O3 and Cr(OH)3 with good corrosion resistance, and promotes the enrichment of Cu to form CuO in the inner rust layer. These products increase the nucleation position and effectively refine the rust grains, leading to the increase of diffusion resistance for corrosive species.

KW - Corrosion resistance

KW - Cr adding

KW - Marine atmospheric environment

KW - Weathering steel

UR - https://www.scopus.com/pages/publications/85104063683

U2 - 10.1016/j.corsci.2021.109427

DO - 10.1016/j.corsci.2021.109427

M3 - 文章

AN - SCOPUS:85104063683

SN - 0010-938X

VL - 186

JO - Corrosion Science

JF - Corrosion Science

M1 - 109427

ER -

Fundamental understanding on the effect of Cr on corrosion resistance of weathering steel in simulated tropical marine atmosphere

Abstract

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Cite this