Corrosion properties of pulse-plated zinc-nickel alloy coatings
- Univ. of British Columbia, Vancouver, British Columbia (Canada). Dept. of Metals and Materials Engineering
- Queen`s Univ., Kingston, Ontario (Canada)
Corrosion properties of pulse-plated Zn-Ni alloy coating on a steel substrate were investigated using the neutral salt-spray test (ASTM B 117-81) and the potentiodynamic polarization technique (ASTM G 5-82). Performance of these alloy coatings with various Ni contents (up to 62 wt%) was compared to that of laboratory-prepared electrodeposited Zn coatings and commercial galvannealed (GA) steel. Results of the neutral salt-spray test indicated corrosion resistance of pulse-plated Zn-Ni alloy coatings was superior to that of the pure Zn and commercial GA coating. The Zn-20 wt% Ni and Zn-14 wt% Ni alloys gave the best protection of the Zn-Ni coatings tested. Potentiodynamic polarization tests confirmed excellent corrosion performance of the 20 wt% Ni alloy
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 404499
- Journal Information:
- Corrosion, Journal Name: Corrosion Journal Issue: 11 Vol. 52; ISSN 0010-9312; ISSN CORRAK
- Country of Publication:
- United States
- Language:
- English
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