Effect of octadecylamine on the corrosion behavior of Type 316SS in acetate buffer

Mao, Feixiong; Dong, Chaofang; Macdonald, Digby D.

doi:10.1016/j.corsci.2015.05.022

Cited by 36 publications

(12 citation statements)

References 33 publications

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“…13 At higher temperature, fatty acids are shown to form either mono-or bidentate bonds between the carboxyl group and the iron-based surface with an interaction strength of ∼−360 kJ/mol. 14 Fatty amines (FAs), on the other hand, are used as corrosion-resistance additives 15,16 and antiwear pad growth inhibitors, 17,18 and hence, they are widely used in lubricant formulation along with amides and mono-oleates. 2 Spikes et al studied long-chain fatty amines as friction modifiers on stainless steel and showed that the lubrication failure of the amine films below a critical concentration was associated with the desorption of the molecules.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Behavior and Nanotribology of Amine-Based Friction Modifiers on Steel Surfaces

et al. 2019

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This work describes the effect of the adsorption behavior of fatty amine-based organic friction modifiers on their tribological performance. The adsorption of four different fatty amines with a varying number of amine functional groups (two vs three) and different anchoring structures (straight vs branched) on stainless steel surfaces in n-hexadecane was monitored using a quartz crystal microbalance (QCM). It is shown that the fatty amines form weakly adsorbed and disordered boundary films, and the molecules lay horizontally on the surface. A higher number of amine functional groups at the anchoring end of the fatty amines results in higher adsorbed masses; however, their larger steric hindrance results in slower adsorption kinetics. Atomic force microscopy shows that the loosely packed adlayers decrease the adhesion between the tip and the stainless steel surface and yield a linear increase in friction force with load at low loads. Comparing adsorbed masses and adsorption kinetic constants with the coefficients of friction measured by lateral force microscopy reveals that faster surface-adsorption kinetics of the additive molecules enables a more effective healing of the worn track, which dictates the friction force in the boundary lubrication regime.

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Section: Introductionmentioning

confidence: 99%

Adsorption Behavior and Nanotribology of Amine-Based Friction Modifiers on Steel Surfaces

et al. 2019

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“…The molecule has both a hydrophilic head and a hydrophobic tail, which after the film formation creates a physical barrier that impedes water, oxygen or other corrosive agents to reach the metal surface and also probably prevents iron dissolution (anodic and cathodic effects). The protective film is often described as a monolayer formed on the steel surface [2,10,13,14] but proof of its thickness has never been provided. The determination of the film thickness would be of great interest to better control the ODA injection in the secondary circuit.…”

Section: Introductionmentioning

confidence: 99%

Impedance analysis of film-forming amines for the corrosion protection of a carbon steel

Baux

Caussé

Esvan

et al. 2018

Electrochimica Acta

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Octadecylamine (ODA) is a well-known organic inhibitor for the corrosion protection of carbon steels. In the present study, electrochemical impedance data analysis was performed to extract physical parameters of the ODA thin film that formed on a P275 carbon steel surface. First, surface observations and contact angle measurements showed the steel surface modification after the ODA treatment linked to the adsorption of an organic hydrophobic thin film. X-ray photoelectron spectroscopy confirmed the presence of a very thin organic layer and revealed the presence of iron oxide/hydroxide underlying the ODA film. The impedance data analysis with a power-law distribution of resistivity in the organic film allowed the permittivity and thickness to be extracted. Finally, from the impedance results with and without ODA, the instantaneous corrosion inhibition efficiency was determined.

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“…The N D values calculated using the aforementioned formula are shown in Table 5. From the viewpoint of the point defect model (PDM), [72] the relationship between N D and E f can be theoretically described as follows. [68,73]…”

Section: Understanding the Enhancement Of Corrosion Resistance From T...mentioning

confidence: 99%

Efficiently Improved Corrosion Resistance of Electrodeposition Ni–Cu Coatings via Site‐Blocking Effect of Ce

Zhang

Meng

et al. 2022

Adv Eng Mater

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Effect of octadecylamine on the corrosion behavior of Type 316SS in acetate buffer

Cited by 36 publications

References 33 publications

Adsorption Behavior and Nanotribology of Amine-Based Friction Modifiers on Steel Surfaces

Adsorption Behavior and Nanotribology of Amine-Based Friction Modifiers on Steel Surfaces

Impedance analysis of film-forming amines for the corrosion protection of a carbon steel

Efficiently Improved Corrosion Resistance of Electrodeposition Ni–Cu Coatings via Site‐Blocking Effect of Ce

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