Systematic corrosion investigation of various Cu–Sn alloys electrodeposited on mild steel in acidic solution: Dependence of alloy composition

Sürme, Yavuz; Gürten, A. Ali; Bayol, Emel; Ersoy, Ersay

doi:10.1016/j.jallcom.2009.05.150

Cited by 27 publications

(18 citation statements)

References 25 publications

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“…(1) (2) Based on the electrodeposition experiments, partial polarization curves were obtained by calculating the effective currents densities used for copper and tin deposition (j Cu and j Sn , respectively) from the element contents in the alloy coating and the current efficiency. In each case, the partial currents were associated with the corresponding potential response of the total applied current density.…”

Section: 2electrodeposition Experimentsmentioning

confidence: 99%

“…In addition, these alloy coatings present a great corrosion resistance in comparison with those containing only copper or tin 1 . Generally, the corrosion resistance of the Cu-Sn coatings increases with the Sn content in the alloy 2 . Cu-Sn alloy films are also used as decorative layers for metallic artifacts, due to their attractive appearance 1,3 .…”

Section: Introductionmentioning

confidence: 99%

“…Cu-Sn alloy films are also used as decorative layers for metallic artifacts, due to their attractive appearance 1,3 . When the deposition conditions are chosen properly, the alloy color ranges from bright yellow to grey, directly depending on the Cu:Sn ratio in the electrolytic bath 2 . However, small changes in the optimal deposition conditions may cause the formation of unattractive grey deposits 3 .…”

Section: Introductionmentioning

confidence: 99%

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Cu-Sn Coatings Produced Using Environmentally Non-Aggressive Electrolyte Containing Sodium Tartrate

2017

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This work proposes the production of Cu-Sn alloy coatings with anticorrosive properties, using an environmentally non-aggressive bath. The coatings were electrodeposited on carbon steel substrate AISI 1020 using an electrolyte containing CuCl 2 and SnCl 2 , and sodium tartrate as the complexant agent. The produced coatings were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), inductively coupled plasma optical emission spectrometry (ICPOES) and electrochemical impedance spectroscopy (EIS). The film showing the highest corrosion resistance was obtained using j = 100 Am -2 . This coating was composed by 95.18 % m/m Cu and 4.83 % m/m Sn, and presented a uniform surface, without defects and small grain sizes. These characteristics probably contributed to the formation of Cu-Sn protective film onto steel substrate from a tartrate bath.

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Section: 2electrodeposition Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Cu-Sn Coatings Produced Using Environmentally Non-Aggressive Electrolyte Containing Sodium Tartrate

2017

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“…Even though high values of R ct may indicate that protective coatings were obtained, high values of C dl suggest that these coatings may be porous or conductive, permitting that the substrate be attacked by the electrolyte 53 . The C dl values calculated in the present experiments ranged from 1.6 x 10 -6 to 2.3 x 10 -2 F cm -2 , depending on the experimental conditions.…”

Section: (4)mentioning

confidence: 99%

Electrodeposition of Composite Coatings of Cu/AlO(OH) Using Allyl Alcohol as an Additive

et al. 2017

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In this work, composite coatings of Cu/AlO(OH) were produced by electrodeposition on steel substrates using a pyrophosphate-based bath containing allyl alcohol as an additive. The electrodeposition of the composite coatings was carried out using a 2³ central composite design (CCD), aiming to verify the effects of the deposition parameters (previous stirring time (t), the stirring speed (S) and the current density (j)), considered the entry variables, on the electrochemical behavior of Cu/AlO(OH) coating, the response variables of the CCD. The results indicated that a decrease of the parameters j and S directly influenced the values of R p and R ct , leading to the production of protective coatings. The best result (R p = 211 Ω and R ct = 221 Ω) was obtained under conditions where t = 120 min, S = 1300 rpm and j = 7 A m -2 . Dispersed bohemite particles could be noted on the surface of the composite coating.

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“…Electrodeposition is a widely used method for producing coatings as it is capable of depositing thicknesses that range from single to hundreds of micrometers. However, the most frequently used electrolytes for direct bronze deposition are highly toxic [3] and more than one phase can be deposited during the process [4], thus altering the resultant surface properties. An alternative to the direct electrodeposition of bronze is the separate deposition of Cu and Sn, followed by a heat treatment process to obtain a bronze finish on the surface through diffusion.…”

mentioning

confidence: 99%

Numerical modeling of bronze coating formation using concentration-dependent diffusivity

Damaceno

Ojo

2017

Int J Adv Manuf Technol

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The engineering of a component's surface is of remarkable importance, it allows applications that surpass what is achievable by the substrate alone by improving surface properties such as hardness, wear and corrosion resistance and even aesthetic value. This project focuses on obtaining bronze coatings through the diffusion of electrodeposited tin on copper via heat treatment. Specifically, the single phase α is targeted due to its attractive properties. Determining the correct heat treatment parameters is crucial since only a specific range of compositions lead to the formation of the desired microstructure and, consequently, properties. The diffusion of a thin coating of tin onto copper often leads to the formation of undesirable features: small craters containing different phases than the one targeted. In the present work, the diffusion behavior of tin-copper couple was investigated; a numerical model was developed to predict the composition profile after heat treatment, which agrees with experimental observations; and the mechanism for the formation of undesirable surface craters during heat treatment was studied and the probable solution proposed. II Acknowledgements

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Systematic corrosion investigation of various Cu–Sn alloys electrodeposited on mild steel in acidic solution: Dependence of alloy composition

Cited by 27 publications

References 25 publications

Cu-Sn Coatings Produced Using Environmentally Non-Aggressive Electrolyte Containing Sodium Tartrate

Cu-Sn Coatings Produced Using Environmentally Non-Aggressive Electrolyte Containing Sodium Tartrate

Electrodeposition of Composite Coatings of Cu/AlO(OH) Using Allyl Alcohol as an Additive

Numerical modeling of bronze coating formation using concentration-dependent diffusivity

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