Effect of passivation on the high-temperature oxidation behavior of hot-formed steel

Du, Wenbin; Liu, Chengjun; Yue, Yingying

doi:10.1016/j.corsci.2022.110318

Cited by 12 publications

(2 citation statements)

References 55 publications

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“…where, ρ o is the critical interface resistance (500 Ω cm -1 ), ε o is the vacuum dielectric constant (8.854×10 −14 F cm -1 ) 50 , and ε is the dielectric constant of the passive film. According to the literature 50 , this value can be considered equal to 12.…”

Section: Hydrogen Detection Sidementioning

confidence: 99%

Combining Electrochemical and Theoretical Analysis to Evaluate Hydrogen Permeation Inhibitors During Free Corrosion

Silvério,

Araujo,

Carvalho

et al. 2024

Mat. Res.

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In this work, electrochemical tests were performed to measure hydrogen permeation during free dissolution of carbon steel in the presence of the ionic liquids (ILs) 1-ethyl-3-methylimidazolium acetate [(EMIM) + (Ac) -], 1-ethyl-3-methylimidazolium bromide [(EMIM) + (Br) -], and 1-butyl-3-methylimidazolium tetrafluoroborate [(BMIM) + (BF 4 ) -] in 5.4 mol L -1 HCl aqueous solution. The permeation inhibition efficiencies (IEp (%)) of 5-hydroxy-2-nitromethylene-hexahydropyrimidine (HPY) and a commercial corrosion inhibitor (CCI) were also evaluated. Among the ILs, the (BMIM) + (BF 4 )compound presented the highest corrosion and hydrogen permeation inhibition efficiencies, with values of 23% and 30%, respectively. The (EMIM) + (Br)and (EMIM) + (Ac)compounds were not effective against corrosion, but they presented IEp of 15.8% and 23%, respectively. The HPY compound demonstrated 61% effectiveness in preventing corrosion, while in silico evaluation indicated no toxicity. However, neither the HPY compound nor the CCI compound inhibited the entry of hydrogen into the carbon steel during the pickling process.

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Section: Hydrogen Detection Sidementioning

confidence: 99%

Combining Electrochemical and Theoretical Analysis to Evaluate Hydrogen Permeation Inhibitors During Free Corrosion

Silvério,

Araujo,

Carvalho

et al. 2024

Mat. Res.

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show abstract

“…[1][2][3] Hot-formed steel is widely used in BIW due to its thin board, high strength, small spring back, and low manufacturing difficulty, including A-pillar, B-pillar, front and rear bumpers, door anti-collision beams, etc. [4][5][6] However, with the increasing demand for automobile safety, the strength of hot-formed steel is required to be higher. According to some research reports, [7][8][9] as an important high value-added alloying element, rare earth (RE) can effectively improve the mechanical properties of pipeline steel, twinning induced plasticity steel, heat-resistant steel, wear-resistant steel, heavy rail steel, etc.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Microstructure and Mechanical Properties of Hot‐Formed Steel with Ce Addition

Du,

Liu,

Liu

et al. 2024

steel research int.

Self Cite

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In this article, the effect of Ce element on the microstructure and mechanical properties was studied by Ce addition to the hot‐formed steel. Scanning electron microscope and energy dispersive spectrometer (SEM‐EDS) was used to analyze the improvement effect of Ce on inclusions and the effect of inclusions on fracture behavior; Electron back scattering diffractometer (EBSD) was used to analyze the refinement and strengthening effect of Ce on martensitic grains; transmission electron microscope (TEM) and high resolution transmission electron microscope (HRTEM) was used to analyze the microstructure strengthening effect and microalloying effect of solid solution Ce in hot‐formed steel. Through a systematic analysis of mechanical properties and microstructure, the mechanism of Ce enhances the strength and elongation of hot‐formed steel was clarified. Besides, this work provides a research basis for further improving the safety and machinability of hot‐formed steel.

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Improving the Surface Performance of Discarded AISI T1 Steel by Cathodic Reduction and Thermal Diffusion-Based Boriding

Sireli

Yuce

Arslan

et al. 2023

J. of Materi Eng and Perform

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Effect of passivation on the high-temperature oxidation behavior of hot-formed steel

Cited by 12 publications

References 55 publications

Combining Electrochemical and Theoretical Analysis to Evaluate Hydrogen Permeation Inhibitors During Free Corrosion

Combining Electrochemical and Theoretical Analysis to Evaluate Hydrogen Permeation Inhibitors During Free Corrosion

Improvement of Microstructure and Mechanical Properties of Hot‐Formed Steel with Ce Addition

Improving the Surface Performance of Discarded AISI T1 Steel by Cathodic Reduction and Thermal Diffusion-Based Boriding

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