Electrochemical behavior of Sn–Ni nanostructured compound in alkaline media and the effect of halide ions

Refaey, S.A.M.; Taha, Fouad; Hasanin, Tamer H. A.

doi:10.1016/j.apsusc.2003.11.074

Cited by 16 publications

(6 citation statements)

References 30 publications

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“…The E corr and I corr values were calculated using the Tafel extrapolation method and values are given in Table 4. There is an appreciable increase in corrosion resistance for the Cu-Ni alloy on Cu substrate compared to that for Cu deposits and Cu substrate, which is due to passive film on the surface [16]. E corr and I corr values improve (a less negative value of E corr and lower value of I corr signifies an improvement in corrosion resistance) for the Cu-Ni alloy on Cu substrate.…”

Section: Potentiodynamic Polarizationmentioning

confidence: 95%

Structure, microstructure and corrosion properties of brush-plated Cu–Ni alloy

Rajasekaran

Mohan

2009

J Appl Electrochem

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Cu-Ni alloy coatings on copper substrate by the brush-plating process have been investigated using XRD and AFM. The X-Ray diffraction analysis revealed that the brush-plated Cu-Ni alloy was heterogeneous and composed of cubic Cu 3.8 Ni phases. Uniform surface coverage of the substrate by granular morphology was observed from AFM. The corrosion protection performance of the brush-plated Cu-Ni alloy on copper substrate has been assessed using electrochemical corrosion tests. These results indicated a high charge transfer and low I corr for the alloy system compared with copper deposits and the copper substrate.

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Section: Potentiodynamic Polarizationmentioning

confidence: 95%

Structure, microstructure and corrosion properties of brush-plated Cu–Ni alloy

Rajasekaran

Mohan

2009

J Appl Electrochem

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“…There is an appreciable increase in corrosion resistance for the annealed Sn-Ni alloy on mild steel substrate compared to tin on mild steel, chromium on mild steel, as prepared alloy and bare mild steel substrate which may be due to passive film formation on the surface [12]. E corr and I corr values improve (a less negative value of E corr and lower value of I corr signifies an improvement in corrosion resistance) for the annealed Sn-Ni alloy on mild steel substrate.…”

Section: Potentiodynamic Polarization Studiesmentioning

confidence: 95%

Selective area deposition of Tin–Nickel alloy coating – an alternative for decorative chromium plating

2006

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Sn-Ni alloy coatings on mild steel substrates produced by selective area deposition process with layer thickness of about 14 lm were investigated with regard to the structural and corrosion properties. X-ray diffraction analysis revealed that the selective area plated Sn-Ni alloy was heterogeneous and composed of NiSn, Ni 3 Sn 2 and Ni 3 Sn 4 phases. Uniform surface coverage of the substrate by granular morphology was observed from SEM and AFM. The alloy composition was determined by X-ray fluorescence (XRF). The corrosion protection performance of Sn-Ni alloy on mild steel was assessed using salt-water immersion and electrochemical corrosion tests. A sharp decrease in I corr and high charge transfer resistance indicated improved corrosion resistant behavior of the selective area deposited Sn-Ni alloy.

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“…For one thing, although titanium is actually highly reactive with the standard electrode potential of −1.628 V, a continuous, stable and extremely protective passive oxide film of TiO 2 can be easily and spontaneously formed because of the high affinity for oxygen of titanium in all kinds of natural environments especially in oxidizing acids even containing Cl − [16,[21][22][23][24][25][26]. On the other hand, a dense protective passive film Ni(OH) 2 can be formed and exist stably on the surface of alloy containing nickel content in all neutral and alkaline solutions [27][28][29][30][31][32], according to the following mechanisms involving chemical and electrochemical steps:…”

Section: Discussionmentioning

confidence: 98%