Effect of Chromium Content on the Passive Film and Corrosion Behavior of Steel Reinforcement in a Simulated Concrete Pore Solution.

Haipeng Lu, Yuwan Tian, Danmei Wu

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In one paragraph

Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

3 authors.

Haipeng LuGuangdong Provincial Ocean Equipment and Manufacturing Engineering Technology Research Center, School of Mechanical Engineering, Guangdong Ocean University, Zhanjiang 524088, China.

Yuwan TianGuangdong Provincial Ocean Equipment and Manufacturing Engineering Technology Research Center, School of Mechanical Engineering, Guangdong Ocean University, Zhanjiang 524088, China.

Danmei WuGuangdong Provincial Ocean Equipment and Manufacturing Engineering Technology Research Center, School of Mechanical Engineering, Guangdong Ocean University, Zhanjiang 524088, China.

Funding

Guangdong Basic and Applied Basic Research Foundation No 2026A1515011729Innovation Team of Guangdong Ocean University CXTD2024008Innovation Team Project for Ordinary Universities in Guangdong Province No.2024KCXTD041

6 · The paper itself

Abstract

Chloride-induced corrosion of steel reinforcements is one of the main factors restricting the durability of reinforced concrete structures. Chromium (Cr) alloying is an effective strategy to enhance the corrosion resistance of steel. However, the appropriate Cr content for different environments remains undetermined. In this study, steels with three different Cr contents of 0, 5, and 10 wt.% were prepared. Electrochemical methods and physical characterization techniques were used to investigate the effects of Cr content on the passive film and corrosion behavior of steels in a simulated concrete pore solution under chloride attack. The results show that Cr alloying increases the critical chloride concentration for steel depassivation, passive film resistance, and charge transfer resistance. Specifically, the critical chloride concentrations of 0Cr, 5Cr, and 10Cr are 0.63, 0.81, and 1.56 mol/L, respectively. In a simulated pore solution with 0.6 mol/L chloride, the charge transfer resistances of 0Cr, 5Cr, and 10Cr are 4.1, 5.8, and 63.4 × 10

Indexed as

chlorideconcretecorrosionCrsteel reinforcement

Identifiers

PMID42195579

DOI10.3390/ma19101939

PMCPMC13209055

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.