Improved corrosion resistance of pulse plated nickel through crystallisation control

P. T. Tang; T. Watanabet; J. E T Andersen; G. Bech-Nielsen

doi:10.1007/BF00249653

Improved corrosion resistance of pulse plated nickel through crystallisation control

P. T. Tang, T. Watanabet, J. E T Andersen, G. Bech-Nielsen

Chemical & Forensic Sciences

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

When electrodeposition of nickel is used for corrosion protection of steel two aspects are important: the porosity of the coating and the resistance against corrosion provided by the coating itself. Using simple pulsed current (PC) plating, the size of the deposited crystals can be significantly smaller, thereby reducing porosity correspondingly. This usually also leads to improved hardness of the coating. Introducing pulse reversal (PR) plating, the most active crystals are continuously dissolved during the anodic pulse, providing a coating with improved subsequent corrosion resistance in almost any corrosive environment. This correlation between film texture and corrosion resistance will be discussed.

Original language	English
Pages (from-to)	347-352
Number of pages	6
Journal	Journal of Applied Electrochemistry
Volume	25
Issue number	4
DOIs	https://doi.org/10.1007/BF00249653
Publication status	Published - Apr 1995

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Materials Chemistry
Electrochemistry

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10.1007/BF00249653

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AB - When electrodeposition of nickel is used for corrosion protection of steel two aspects are important: the porosity of the coating and the resistance against corrosion provided by the coating itself. Using simple pulsed current (PC) plating, the size of the deposited crystals can be significantly smaller, thereby reducing porosity correspondingly. This usually also leads to improved hardness of the coating. Introducing pulse reversal (PR) plating, the most active crystals are continuously dissolved during the anodic pulse, providing a coating with improved subsequent corrosion resistance in almost any corrosive environment. This correlation between film texture and corrosion resistance will be discussed.

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Improved corrosion resistance of pulse plated nickel through crystallisation control

Abstract

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