The use of experimental design for the study of the corrosion of bronze pretreated with AMT in artificial rainwater

Lago, Dalva Cristina Baptista do; Senna, Lílian Ferreira de; Soares, Eduardo Costa Studart; Silva, L.F. da; Fernandes, Débora S.; Luna, Aderval S.; D’Elia, Eliane

doi:10.1016/j.porgcoat.2013.03.032

Cited by 14 publications

(7 citation statements)

References 23 publications

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“…Up to now, the most efficient organic inhibitors of bronze corrosion have mainly been azoles and particularly triazoles [2][3][4], tetrazoles [2,5], imidazoles [6] and thiadiazoles [2,5,7,8]. The inhibition mechanism of these substances has been investigated above all on copper, as it is the main alloying element in bronze.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of 2-(salicylideneimino) thiophenol and other Schiff bases as bronze corrosion inhibitors by electrochemical techniques and surface analysis

et al. 2019

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In this research, different Schiff bases were synthesized and tested as bronze corrosion inhibitors in concentrated synthetic acid rain at pH 3.3. Some of them showed good inhibiting effects, as detected by EIS and polarization curve recording. The most efficient inhibitor (2-(salicylideneimino) thiophenol, SITP) was also tested with addition of sodium dihydrogen phosphate (P). P improved the surface film resistance against breakdown phenomena. XPS and SEM investigations showed that SITP and SITP + P significantly hinder decuprification. Moreover, SITP forms a protective layer on bronze, composed of both Cu(I)-SITP complexes and adsorbed inhibitor molecules. Cu(II) phosphates were also detected with P addition.

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Section: Introductionmentioning

confidence: 99%

Evaluation of 2-(salicylideneimino) thiophenol and other Schiff bases as bronze corrosion inhibitors by electrochemical techniques and surface analysis

et al. 2019

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“…The transverse line corresponds to p = 0.05 and indicates how large the effect is required to be considered statistically significant. [27] Both linear and quadratic terms of the studied parameters (SEBS ratio, Temp, and time), as well as the interactions among them, were observed, with a 95 % of confidence, to significantly influence the CR values. Consequently, it is obvious that the most significant parameter is the SEBS ratio.…”

Section: Statistical Treatment Of Datamentioning

confidence: 82%

“…The univariate methods are empirical ones that are incapable of measuring the synergic and antagonistic interactions. [25][26][27] Hence, they are not effectively able to represent the best conditions (optimization conditions) to obtain the desired properties. [28,29] Furthermore, the used procedure is timeconsuming and requires a large number of experiments to determine optimum levels, which are unreliable, [25,26] thus confirming that the observed univariate methods should be considered with caution.…”

Section: Introductionmentioning

confidence: 99%

“…Some authors and we have introduced the use of the experimental design to understand metals corrosion and inhibition. [27,[34][35][36] Despite, the immersion protocol depends on other factors, our first study consecrated only the effect of the SEBS ratio on the electrochemical behaviour of SEBS coated copper. Therefore, a design of the experiment should be used to determine the variables that significantly influence the corrosion rate of Cu-SEBS.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion Evaluation of Copper with Polystyrene‐Block‐Poly(ethylene‐ran‐butylene)‐Block‐Polystyrene Triblock (SEBS) Copolymer Coating in 3 % NaCl Solution by Using Response Surface Methodology

Masmoudi,

Mkaouar,

Amor

et al. 2023

ChemistrySelect

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The present research work undertakes the investigation of preparation of the polystyrene‐block‐poly (ethylene‐ran‐butylene)‐block‐polystyrene triblock (SEBS) copolymer coating on a copper surface (Cu‐SEBS) following a well‐defined immersion protocol. The SEBS ratio, drying temperature (Temp), and drying time (time) are the factors for the determination of the immersion protocol of the Cu‐SEBS electrode's preparation. To evaluate the effects of these factors on the anticorrosive behaviour of copper in NaCl 3 % solution and to determine the best conditions to produce a protective SEBS film on the copper surface (low corrosion rate), we used the experimental design and the central composite design (CCD). The response surface methodology (RSM) was used in this study as an optimization method and the Statgraphics software was used to treat experimental design data. The corrosion rate of Cu‐SEBS at the different runs of the experimental matrix was measured by voltammetry around the open circuit potential (OCP) (ΔE=±50 mV vs SCE). The analysis of variance, the Pareto graph and the figure of the main and combined effect of the experimental factors show that the SEBS rate is the most significant factor. The linear effect of time and Temp, the quadratic effect of SEBS ratio, and the interaction between SEBS ratio and the drying temperature is, even though important, less significant. The optimized parameters were determined to obtain the lower corrosion rate, which was a 3.059 % of SEBS ratio, 70.18 °C of drying temperature, and 21 min of drying time. Then, to confirm the model, an electrochemical investigation of SEBS‐coated copper at optimal conditions of immersion protocol (Cu‐SEBS‐Opt‐Cond) was successfully applied in a 3 wt % NaCl aqueous solution. The corrosion rate of Cu‐SEBS‐Opt‐Cond was obtained by voltammetry around the open circuit potential (OCP) equal 0.00023 mm year−1 which is close to that found by the experimental design. The measures of voltammetry around OCP, cyclic voltammetric (CV), and electrochemical impedance spectroscopy (EIS) showed that the Cu‐SEBS‐Opt‐Cond electrode exhibited more stability and a much higher corrosion resistance than that observed for bare copper.

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“…One of the most common options of choice and important material for many industrial and domestic applications are copper metal, besides copper alloys like copper-lead and copper-Nickel [9][10][11]. Therefore, it is subjected to intensive investigation due to its excellent high thermal conductivity and electromigration resistance compared with another transition group of materials such as aluminum [12][13][14][15].…”

Section: Chapter ⅰ Introduction 11 Motivationmentioning

confidence: 99%

Tuning the wettability of metal surface with electrodeposited porous copper and graphene coatings

Eltigani

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Electrodeposition of porous copper is an interesting type of coating that is emerging for various applications. However, the understanding of the relationships between copper surface wettability control and electrodeposition parameters and post-electrodeposition storage conditions is quite limited. �Furthermore, it is worthwhile to explore how nanomaterials such as graphene would interact with porous copper to provide surface wettability modifications. This work therefore aims to develop a framework for the relationship of copper and graphene deposition processes, storage conditions, and the wetting behavior of copper surfaces. The research work performed in this study is divided into 2 parts: (i) effects of plating and storage conditions on the wettability of electrodeposited porous copper surfaces, (ii) tailoring the wettability of copper surfaces by dropping of graphene solutions. �From a wide range of characterization methods and analysis to investigate the microstructure of porous copper and graphene, and corresponding wetting properties of their surfaces, the key findings of the study are that the concentration of copper electrolyte and current density largely influence the microstructure of the porous copper which subsequently lead to the variations of contact angles in the hydrophilic regime. �Furthermore, whereas the air storing condition promote hydrophobicity, the water and saline storage conditions are found to induce hydrophilicity.� Finally, deposition of graphene using a solution dropping technique allows tuning of the surface wettability in a wide range, spanning superhydrophilic to superhydrophobic, depending on copper surface porosity and graphene solutions' concentration and dispersing level. Graphene is thus demonstrated as a promising top-coat layer to tune the wettability of copper surfaces

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The use of experimental design for the study of the corrosion of bronze pretreated with AMT in artificial rainwater

Cited by 14 publications

References 23 publications

Evaluation of 2-(salicylideneimino) thiophenol and other Schiff bases as bronze corrosion inhibitors by electrochemical techniques and surface analysis

Evaluation of 2-(salicylideneimino) thiophenol and other Schiff bases as bronze corrosion inhibitors by electrochemical techniques and surface analysis

Corrosion Evaluation of Copper with Polystyrene‐Block‐Poly(ethylene‐ran‐butylene)‐Block‐Polystyrene Triblock (SEBS) Copolymer Coating in 3 % NaCl Solution by Using Response Surface Methodology

Tuning the wettability of metal surface with electrodeposited porous copper and graphene coatings

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