Corrosion behavior of Cr modified HRB400 steel rebar in simulated concrete pore solution

Ming Liu; Xuequn Cheng; Xiaogang Li; Zhu Jin; Haixia Liu

doi:10.1016/j.conbuildmat.2015.05.073

Corrosion behavior of Cr modified HRB400 steel rebar in simulated concrete pore solution

Ming Liu
, Xuequn Cheng
, Xiaogang Li^*
, Zhu Jin
, Haixia Liu

^*Corresponding author for this work

University of Science and Technology Beijing

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

148 Scopus citations

Abstract

Cr modified alloy steels using HRB400 steel as base alloy were produced by remelting in a vacuum. Their corrosion resistance were estimated by open circuit potential, electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy and immersion test in saturated Ca(OH)₂ simulated concrete pore solution. The modified alloy steels exhibit higher corrosion resistance with a high chloride thresholds, lower corrosion current density and higher impedance than HRB400 steel rebar. Cr can modify the proportion of Cr element in the passive film. The immersion test showed that the new alloy steels have lower corrosion rates. The new alloy steels have longer durability than HRB400 steel.

Original language	English
Pages (from-to)	884-890
Number of pages	7
Journal	Construction and Building Materials
Volume	93
DOIs	https://doi.org/10.1016/j.conbuildmat.2015.05.073
State	Published - 29 Jul 2015
Externally published	Yes

Keywords

Alloy
Critical chloride level
EIS
Passive film
Steel

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10.1016/j.conbuildmat.2015.05.073

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title = "Corrosion behavior of Cr modified HRB400 steel rebar in simulated concrete pore solution",

abstract = "Cr modified alloy steels using HRB400 steel as base alloy were produced by remelting in a vacuum. Their corrosion resistance were estimated by open circuit potential, electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy and immersion test in saturated Ca(OH)2 simulated concrete pore solution. The modified alloy steels exhibit higher corrosion resistance with a high chloride thresholds, lower corrosion current density and higher impedance than HRB400 steel rebar. Cr can modify the proportion of Cr element in the passive film. The immersion test showed that the new alloy steels have lower corrosion rates. The new alloy steels have longer durability than HRB400 steel.",

keywords = "Alloy, Critical chloride level, EIS, Passive film, Steel",

author = "Ming Liu and Xuequn Cheng and Xiaogang Li and Zhu Jin and Haixia Liu",

year = "2015",

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day = "29",

doi = "10.1016/j.conbuildmat.2015.05.073",

language = "英语",

volume = "93",

pages = "884--890",

journal = "Construction and Building Materials",

issn = "0950-0618",

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T1 - Corrosion behavior of Cr modified HRB400 steel rebar in simulated concrete pore solution

AU - Liu, Ming

AU - Cheng, Xuequn

AU - Li, Xiaogang

AU - Jin, Zhu

AU - Liu, Haixia

PY - 2015/7/29

Y1 - 2015/7/29

N2 - Cr modified alloy steels using HRB400 steel as base alloy were produced by remelting in a vacuum. Their corrosion resistance were estimated by open circuit potential, electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy and immersion test in saturated Ca(OH)2 simulated concrete pore solution. The modified alloy steels exhibit higher corrosion resistance with a high chloride thresholds, lower corrosion current density and higher impedance than HRB400 steel rebar. Cr can modify the proportion of Cr element in the passive film. The immersion test showed that the new alloy steels have lower corrosion rates. The new alloy steels have longer durability than HRB400 steel.

AB - Cr modified alloy steels using HRB400 steel as base alloy were produced by remelting in a vacuum. Their corrosion resistance were estimated by open circuit potential, electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy and immersion test in saturated Ca(OH)2 simulated concrete pore solution. The modified alloy steels exhibit higher corrosion resistance with a high chloride thresholds, lower corrosion current density and higher impedance than HRB400 steel rebar. Cr can modify the proportion of Cr element in the passive film. The immersion test showed that the new alloy steels have lower corrosion rates. The new alloy steels have longer durability than HRB400 steel.

KW - Alloy

KW - Critical chloride level

KW - EIS

KW - Passive film

KW - Steel

UR - https://www.scopus.com/pages/publications/84938198342

U2 - 10.1016/j.conbuildmat.2015.05.073

DO - 10.1016/j.conbuildmat.2015.05.073

M3 - 文章

AN - SCOPUS:84938198342

SN - 0950-0618

VL - 93

SP - 884

EP - 890

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Corrosion behavior of Cr modified HRB400 steel rebar in simulated concrete pore solution

Abstract

Keywords

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