Tribocorrosion and corrosion behavior of stainless steel coated with DLC films in ethanol with different concentrations of water

Radi, Polyana Alves; Vieira, Ângela Aparecida; Manfroi, Lucas Augusto; Nass, Karina Carvalho de Farias; Ramos, Marco Antonio Ramírez; Leite, Priscila Maria Sarmeiro Corrêa Marciano; Martins, Guilherme; Jofre, Jorge Benedito Freire; Vieira, Lucia

doi:10.1016/j.ceramint.2019.02.103

Cited by 28 publications

(24 citation statements)

References 25 publications

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“…These biofuels and their blends are reported to be more corrosive than the petroleum products to the vehicles engine and fuel storage parts made by such metallic substances [14]− [22]. Besides, various types of corrosion problems, such as pitting, crevice corrosion, and stress corrosion crack might be existed in ethanol production process and hence it is suggested the diamond like coating (DLC) on steel container which use for the ethanol production [23].…”

Section: Introductionmentioning

confidence: 99%

Assessment on the Effective Green-Based Nepal Origin Plants Extract as Corrosion Inhibitor for Mild Steel in Bioethanol and its Blend

Katuwal

Regmi

Joshi

et al. 2020

EJCHEM

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Effects of Nepal origin plant species of Vitex negundo, Catharanthus roseu, Aegle marmelos and Elaeocarpus ganitrus extracts on mild steel corrosion were explored in bioethanol (E100) and its blend (E15) in airtight condition at 25±2 °C using static immersion, inhibition efficiency and mechanism tests which were complemented with adsorption isotherms and potentiodynamic polarization studies. Corrosion resistance of the mild steel was increased with increasing 500-2000 ppm concentrations of each plant extract in E100 and E15 biofuels. Additions of V. negundo and C. roseus extract separately in both the biofuels seems to be more effective inhibition actions to prevent the mild steel corrosion than A. marmelos or E. ganitrus addition so as the corrosion rates of the mild steel in E100 and E15 are successfully lowered even than in commercial gasoline (E0). The results obtained from the corrosion rate revealed the order of the corrosion inhibition efficiency (IE) as V. negundo > C. roseus > A. marmelos > E. ganitrus. The maximum IE (IEmax) in V. negundo and C. roseus leaves was showed about 89-86% and 71-75%, respectively, at 2000 ppm concentration, in spite of the other two more plants leaf extract also used as the corrosion inhibitors for the mild steel in both E100 and E15 biofuels. The IE increased on increasing inhibitor concentration following the Langmuir and Temkin adsorption isotherms but decreased with immersion time which suggested that the corrosion inhibition mechanism is of physical type of adsorption of the leaves constituents on the mild steel surface. A. marmelos extract acted as an anodic type of inhibitor in E100 and E15, while E. ganitrus acted as mixed

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Section: Introductionmentioning

confidence: 99%

Assessment on the Effective Green-Based Nepal Origin Plants Extract as Corrosion Inhibitor for Mild Steel in Bioethanol and its Blend

Katuwal

Regmi

Joshi

et al. 2020

EJCHEM

View full text Add to dashboard Cite

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“…Before the biological fermentation methods become the best choice, various corrosion problems, such as pitting, crevice corrosion, and stress corrosion crack, still exist in ethanol production process. For fear of corrosion accident in bioethanol production, coating was suggested to prevent corrosion of steels in ethanolic environment (Radi et al, 2019 ). Coating is a widely used method to enhance corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Influence of Ethanol on Pitting Corrosion Behavior of Stainless Steel for Bioethanol Fermentation Tanks

et al. 2020

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The role of ethanol (C 2 H 5 OH) in pitting corrosion behavior of AISI 316L austenitic stainless steel was investigated in aqueous ethanolic solution with chloride. The pitting susceptibility and surface morphology of 316L in a series of ethanol-containing solutions were examined using X-ray photoelectron spectroscopy (XPS), optical microscopy with 3D stitching, immersion tests, and potentiodynamic polarization measurements. Results demonstrated that the ethanol concentration impacted little on the passive film stability while it dramatically influenced the pitting corrosion susceptibility. Corrosion rate of 316L after immersion tests first increased and then decreased as the concentration of ethanol increased from 0 to 10 M in ferric chloride solution. This, however, did not correspond to the breakdown potential which directly decreased from 489 to 249 mV as the water concentration decreased in ethanolic NaCl solutions. The pits density after both immersion and electrochemical tests showed that the initiation of pitting in ethanolic solution tended to occur at multiple points at the same time. The synergy effect on pitting behavior of hydrolysis enhancement and solubility reduction of metal cations due to the introduction of ethanol has also been discussed.

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“…[ 25 ] The growth rates of formation films increase with the increase of current density. [ 26 ] As shown in Figure 2, during the electrochemical deposition process, the external voltage increased from 0 to 300 V within 30 s. Within 1 min of applying an external voltage, the current density gradually increased and finally reached saturation and stabilized at 50 mA/cm 2 , which means that the growth rate of the film increased rapidly and reached the maximum. The results demonstrate that the organic carbon fragments quickly move to the cathode substrate and adsorb on the cathode activation site to become active molecules and electrochemical reactions occur.…”

Section: Resultsmentioning

confidence: 99%

Electrodeposition of B, Ni co‐doped diamond‐like carbon films on AZ91D magnesium alloy: Corrosion and wear resistance

Sun

Dong

et al. 2020

Materials & Corrosion

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Diamond‐like carbon (DLC) possesses brilliant and excellent properties, including excellent corrosion resistance as well as outstanding wear resistance. Ni and B co‐doped DLC films were deposited on AZ91D magnesium alloy by electrodeposition under mild conditions (300 V and 25°C). Uniform and dense morphology of co‐doped DLC films were observed, and Ni and B were uniformly incorporated into the carbon‐based films. Among all the electrodeposits, the appearance of D and G peaks near 1330 and 1570 cm−1 revealed that the as‐deposited films were typical DLC films. As the addition of Ni was increased to 0.05 g, the highest microindentation hardness, the lowest friction coefficient, and wear loss were achieved to be 164.5 HV, 0.3, and 0.6 × 10−5 kg/m, respectively. The amorphous carbon films fabricated at 0.05 g Ni had the lowest corrosion current density and the most positive corrosion potential, which was mainly due to the small and dense granular structure effectively hindering the penetration of corrosion media.

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Tribocorrosion and corrosion behavior of stainless steel coated with DLC films in ethanol with different concentrations of water

Cited by 28 publications

References 25 publications

Assessment on the Effective Green-Based Nepal Origin Plants Extract as Corrosion Inhibitor for Mild Steel in Bioethanol and its Blend

Assessment on the Effective Green-Based Nepal Origin Plants Extract as Corrosion Inhibitor for Mild Steel in Bioethanol and its Blend

Influence of Ethanol on Pitting Corrosion Behavior of Stainless Steel for Bioethanol Fermentation Tanks

Electrodeposition of B, Ni co‐doped diamond‐like carbon films on AZ91D magnesium alloy: Corrosion and wear resistance

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