Effect of residual dissolved oxygen on the corrosion behavior of low carbon steel in 0.1 M NaHCO3 solution

Xue, Fei; Wei, Xin; Dong, Jie; Etim, Ini-Ibehe Nabuk; Wang, Changgang; Ke, Wei

doi:10.1016/j.jmst.2017.11.004

Cited by 55 publications

(25 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, to reduce the risk of corrosion, the DH water that flowed through the pipe was maintained at a dissolved oxygen level below 200 ppm through periodic water quality management [ 15 ]. In low-carbon steel, localized corrosion hardly occurs when the concentration of dissolved oxygen is low [ 20 ]. In addition, in the case of the exterior of the pipe, localized corrosion may be further accelerated due to the non-uniform distribution of groundwater penetrating into the heat insulator.…”

Section: Resultsmentioning

confidence: 99%

Localized Corrosion Occurrence in Low-Carbon Steel Pipe Caused by Microstructural Inhomogeneity

Lee

Kim

et al. 2022

Materials

View full text Add to dashboard Cite

In this study, the cause of failure of a low-carbon steel pipe meeting standard KS D 3562 (ASTM A135), in a district heating system was investigated. After 6 years of operation, the pipe failed prematurely due to pitting corrosion, which occurred both inside and outside of the pipe. Pitting corrosion occurred more prominently outside the pipe than inside, where water quality is controlled. The analysis indicated that the pipe failure occurred due to aluminum inclusions and the presence of a pearlite inhomogeneous phase fraction. Crevice corrosion occurred in the vicinity around the aluminum inclusions, causing localized corrosion. In the large pearlite fraction region, cementite in the pearlite acted as a cathode to promote dissolution of surrounding ferrite. Therefore, in the groundwater environment outside of the pipe, localized corrosion occurred due to crevice corrosion by aluminum inclusions, and localized corrosion was accelerated by the large fraction of pearlite around the aluminum inclusions, leading to pipe failure.

show abstract

Section: Resultsmentioning

confidence: 99%

Localized Corrosion Occurrence in Low-Carbon Steel Pipe Caused by Microstructural Inhomogeneity

Lee

Kim

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…Figure 12 shows the XRD pattern for corrosion products obtained on the steel rebar surface after the exposure period for 30 days for the systems O-SSA0 and O-SSA20, respectively. It can be seen from Figure 12 that the corrosion products were Fe 2 O 3 , α-FeOOH, γ-FeOOH (lepidocrocite), Fe 3 O 4 , and Fe 6 (OH) 12 CO 3 [ 57 , 58 , 59 , 60 ]. In addition, the diffraction intensity of the Fe 3 O 4 /Fe 2 O 3 is higher for the steel rebar immersed in a control system (O-SSA0) when compared to O-SSA20.…”

Section: Resultsmentioning

confidence: 99%

“…The average compressive strength vs. replacement level for control and OPC replaced by a SSA system at 10%, 20%, 30%, 40%, and 50% replacement levels are shown in Figure 13a. FeOOH, γ-FeOOH (lepidocrocite), Fe3O4, and Fe6(OH)12CO3 [57][58][59][60]. In addition, the diffraction intensity of the Fe3O4/Fe2O3 is higher for the steel rebar immersed in a control system (O-SSA0) when compared to O-SSA20.…”

Section: Compressive Strength Testmentioning

confidence: 99%

“…Figure12shows the XRD pattern for corrosion products obtained on the steel rebar surface after the exposure period for 30 days for the systems O-SSA0 and O-SSA20, respectively. It can be seen from Figure12that the corrosion products were Fe 2 O 3 , α-FeOOH, γ-FeOOH (lepidocrocite), Fe 3 O 4 , and Fe 6 (OH) 12 CO 3[57][58][59][60]. In addition, the diffraction…”

mentioning

confidence: 93%

See 1 more Smart Citation

Assessment of Corrosion Performance of Steel Rebar in Snail Shell Ash Blended Cements under Marine Environments

et al. 2021

View full text Add to dashboard Cite

An attempt has been made on a constructive approach to evaluate the performance of snail shell ash (SSA) for its corrosion performance under marine environments. Corrosion performance of steel rebar in chloride-contaminated SSA with (0% to 50%) replacement levels of cement extract medium was examined through electrochemical and weight loss techniques. Initially, snail shell powder (SSP) is made by pulverizing and subsequently SSA is by thermal decomposition methods. Both SSP and SSA were characterized by X-ray diffraction, Fourier transforms infrared spectroscopy, scanning electron microscopy, and energy dispersion X-ray spectroscopy. Concrete cubes with 0% to 50% replacement levels of cement by SSA were evaluated for their mechanical properties. A critical level of 20 to 30% SSA improved both corrosion resistance and strength of concrete. Extrapolation modeling for the strength and corrosion rate with respect to later age were made. SSA is a suitable replacement material for natural limestone in cement productions.

show abstract

“…These interactions depend on the CaCO3 size particles. Guo et al [79] recently reported that C3A hydrated (e.g., 3CaO.Al2O3.6H2O) reacts with both chloride ions and CaCO3 acidifying local limited cement paste and the chloride binding capacity decreased [79][80][81]. This can be simplified by Equations ( 3) and ( 4) (not stoichiometric balanced), respectively [79]: In this initial stage, the CaCO 3 content modifies pH-neighboring rebar and different species to constitute the double layer are formed.…”

Section: Eis Analyses: Corrosion Performance Among Distinctive Concre...mentioning

confidence: 99%

EIS Investigation of the Corrosion Behavior of Steel Bars Embedded into Modified Concretes with Eggshell Contents

Meyer

Menezes

Bonatti

et al. 2022

Metals

View full text Add to dashboard Cite

This investigation is focused on evaluation of the corrosion behavior of embedded steel bars (SB) into concretes. Conventional and modified concretes with eggshell are prepared. Although the effect of calcium carbonate on mechanical behavior is recognized and reported, their effects as eggshell (ES) particles replacing portions of sand and cement contents are reasonably scarce. Corrosion behavior is evaluated by electrochemical impedance spectroscopy (EIS) and the potentiodynamic polarization technique. Equivalent circuit and porous electrode behavior are also considered. The novelty concerns a promising use of concrete with ES content to maintain corrosion resistance concatenated with reasonable structural properties. For this purpose, three distinct concrete mixtures are proposed, i.e., a reference and two modified concretes. One replaces 10 wt.% with cement and another 10 wt.% with sand content. It is found that porous electrode behavior helps to predict the corrosion mechanism. Finer ES particles in concrete mixture provides a rapidly passivation on rebar. This reflects positively in corrosion current density after long-term immersion. Additionally, an environmentally friendly aspect associated with economical factor constitutes a promise use of the concrete.

show abstract

Effect of residual dissolved oxygen on the corrosion behavior of low carbon steel in 0.1 M NaHCO3 solution

Cited by 55 publications

References 44 publications

Localized Corrosion Occurrence in Low-Carbon Steel Pipe Caused by Microstructural Inhomogeneity

Localized Corrosion Occurrence in Low-Carbon Steel Pipe Caused by Microstructural Inhomogeneity

Assessment of Corrosion Performance of Steel Rebar in Snail Shell Ash Blended Cements under Marine Environments

EIS Investigation of the Corrosion Behavior of Steel Bars Embedded into Modified Concretes with Eggshell Contents

Contact Info

Product

Resources

About