The beneficial galvanic effect of the constituent phases in 2205 duplex stainless steel on the passive films formed in a 3.5% NaCl solution

Xuequn Cheng; Yi Wang; Chaofang Dong; Xiaogang Li

doi:10.1016/j.corsci.2018.02.033

The beneficial galvanic effect of the constituent phases in 2205 duplex stainless steel on the passive films formed in a 3.5% NaCl solution

Xuequn Cheng^*
, Yi Wang
, Chaofang Dong
, Xiaogang Li

^*Corresponding author for this work

University of Science and Technology Beijing
West Virginia University

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

80 Scopus citations

Abstract

The galvanic effect of the composed phases in 2205 duplex stainless steel on the passive films formation of the two phases in a 3.5% NaCl solution was investigated by electrochemical measurements and composition analyses. The results show that the galvanic effect benefits the stability of the passive films of both phases. However, the inner part of the α-phase passive layer benefits the most because of the increase in the concentrations of Cr, Ni and Mo in the passive film, the decrease in the formation rate and transfer velocity of the oxygen vacancies, and the reduction in the defect density.

Original language	English
Pages (from-to)	122-130
Number of pages	9
Journal	Corrosion Science
Volume	134
DOIs	https://doi.org/10.1016/j.corsci.2018.02.033
State	Published - 15 Apr 2018
Externally published	Yes

Keywords

Corrosion
Duplex stainless steel
Galvanic effect
Passive film

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10.1016/j.corsci.2018.02.033

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title = "The beneficial galvanic effect of the constituent phases in 2205 duplex stainless steel on the passive films formed in a 3.5\% NaCl solution",

abstract = "The galvanic effect of the composed phases in 2205 duplex stainless steel on the passive films formation of the two phases in a 3.5\% NaCl solution was investigated by electrochemical measurements and composition analyses. The results show that the galvanic effect benefits the stability of the passive films of both phases. However, the inner part of the α-phase passive layer benefits the most because of the increase in the concentrations of Cr, Ni and Mo in the passive film, the decrease in the formation rate and transfer velocity of the oxygen vacancies, and the reduction in the defect density.",

keywords = "Corrosion, Duplex stainless steel, Galvanic effect, Passive film",

author = "Xuequn Cheng and Yi Wang and Chaofang Dong and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = apr,

day = "15",

doi = "10.1016/j.corsci.2018.02.033",

language = "英语",

volume = "134",

pages = "122--130",

journal = "Corrosion Science",

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TY - JOUR

T1 - The beneficial galvanic effect of the constituent phases in 2205 duplex stainless steel on the passive films formed in a 3.5% NaCl solution

AU - Cheng, Xuequn

AU - Wang, Yi

AU - Dong, Chaofang

AU - Li, Xiaogang

PY - 2018/4/15

Y1 - 2018/4/15

N2 - The galvanic effect of the composed phases in 2205 duplex stainless steel on the passive films formation of the two phases in a 3.5% NaCl solution was investigated by electrochemical measurements and composition analyses. The results show that the galvanic effect benefits the stability of the passive films of both phases. However, the inner part of the α-phase passive layer benefits the most because of the increase in the concentrations of Cr, Ni and Mo in the passive film, the decrease in the formation rate and transfer velocity of the oxygen vacancies, and the reduction in the defect density.

AB - The galvanic effect of the composed phases in 2205 duplex stainless steel on the passive films formation of the two phases in a 3.5% NaCl solution was investigated by electrochemical measurements and composition analyses. The results show that the galvanic effect benefits the stability of the passive films of both phases. However, the inner part of the α-phase passive layer benefits the most because of the increase in the concentrations of Cr, Ni and Mo in the passive film, the decrease in the formation rate and transfer velocity of the oxygen vacancies, and the reduction in the defect density.

KW - Corrosion

KW - Duplex stainless steel

KW - Galvanic effect

KW - Passive film

UR - https://www.scopus.com/pages/publications/85042434974

U2 - 10.1016/j.corsci.2018.02.033

DO - 10.1016/j.corsci.2018.02.033

M3 - 文章

AN - SCOPUS:85042434974

SN - 0010-938X

VL - 134

SP - 122

EP - 130

JO - Corrosion Science

JF - Corrosion Science

ER -

The beneficial galvanic effect of the constituent phases in 2205 duplex stainless steel on the passive films formed in a 3.5% NaCl solution

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Keywords

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