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Corrosion properties of electrodeposited nanocrystalline and amorphous patterned Ni–W alloy

Alimadadi, H. / Ahmadi, M. / Aliofkhazraei, M. / Younesi, S.R.

AbstractNickel–tungsten with satisfactory corrosion properties is a promising alloy to replace hard chromium. Relatively high adhesion between copper substrate and electrodeposited Ni–W alloy results in patterned morphology due to crack formation. In this work, corrosion resistance of patterned Ni–W alloys comprising 0–26at.%.W were studied by potentiodynamic polarization and EIS in a medium containing Cl⁻. It is shown that corrosion resistance of single phase Ni–W is superior to amorphous and dual phase coated layers. It is also found that crack density is the dominant affecting factor on corrosion resistance of amorphous Ni–W alloys.

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Corrosion properties of electrodeposited nanocrystalline and amorphous patterned Ni–W alloy

Alimadadi, H. / Ahmadi, M. / Aliofkhazraei, M. / Younesi, S.R.

AbstractNickel–tungsten with satisfactory corrosion properties is a promising alloy to replace hard chromium. Relatively high adhesion between copper substrate and electrodeposited Ni–W alloy results in patterned morphology due to crack formation. In this work, corrosion resistance of patterned Ni–W alloys comprising 0–26at.%.W were studied by potentiodynamic polarization and EIS in a medium containing Cl⁻. It is shown that corrosion resistance of single phase Ni–W is superior to amorphous and dual phase coated layers. It is also found that crack density is the dominant affecting factor on corrosion resistance of amorphous Ni–W alloys.

Corrosion properties of electrodeposited nanocrystalline and amorphous patterned Ni–W alloy

Alimadadi, H. / Ahmadi, M. / Aliofkhazraei, M. / Younesi, S.R.

AbstractNickel–tungsten with satisfactory corrosion properties is a promising alloy to replace hard chromium. Relatively high adhesion between copper substrate and electrodeposited Ni–W alloy results in patterned morphology due to crack formation. In this work, corrosion resistance of patterned Ni–W alloys comprising 0–26at.%.W were studied by potentiodynamic polarization and EIS in a medium containing Cl⁻. It is shown that corrosion resistance of single phase Ni–W is superior to amorphous and dual phase coated layers. It is also found that crack density is the dominant affecting factor on corrosion resistance of amorphous Ni–W alloys.

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Title:

Corrosion properties of electrodeposited nanocrystalline and amorphous patterned Ni–W alloy

Contributors:

Alimadadi, H. (author) / Ahmadi, M. (author) / Aliofkhazraei, M. (author) / Younesi, S.R. (author)

Publication date:

2008-06-05

Size:

6 pages

ISSN:

DOI:

https://doi.org/10.1016/j.matdes.2008.06.036

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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