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Zinc-Nickel Nanolaminate – Advanced Coating for Bolt Corrosion Control

This paper will present both laboratory and field trial results as evaluated with ASTM D610 for Zn-Ni nanolaminated and comparative coated fasteners and discuss how utilizing ASTM D610 helps to ensure objective, consistent red rust measurements.

Product Number: 51317--9220-SG
ISBN: 9220 2017 CP
Author: Christina Lomasney
Publication Date: 2017
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The majority of steel fastener systems are protected from corrosion using one or more of hot dip galvanizing electrogalvanizing poly-tetra fluoroethylene (PTFE) and cadmium (being phased out). Nanolaminated Zn-Ni has improved corrosion performance as compared to these conventional systems. In addition to fastener corrosion protection the Zn-Ni nanolaminate also provides a high level of adhesion to the steel substrate a paint adherent surface and a compatible galvanic couple between the coated steel fasteners and other metallic materials including stainless steel components low carbon steel flanges and structural steel. This paper will present both laboratory and field trial results for Zn-Ni nanolaminated fasteners.

Key words: Nanolaminate, Nano-structure, metallic coating, multilayer coating, Zn-Ni, zinc-nickel, deposit, composite

The majority of steel fastener systems are protected from corrosion using one or more of hot dip galvanizing electrogalvanizing poly-tetra fluoroethylene (PTFE) and cadmium (being phased out). Nanolaminated Zn-Ni has improved corrosion performance as compared to these conventional systems. In addition to fastener corrosion protection the Zn-Ni nanolaminate also provides a high level of adhesion to the steel substrate a paint adherent surface and a compatible galvanic couple between the coated steel fasteners and other metallic materials including stainless steel components low carbon steel flanges and structural steel. This paper will present both laboratory and field trial results for Zn-Ni nanolaminated fasteners.

Key words: Nanolaminate, Nano-structure, metallic coating, multilayer coating, Zn-Ni, zinc-nickel, deposit, composite

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