Nei Corporation

Peter Hornish

Ganesh Skandan

Fred Mitchell Allen

Mohit Jain

Gaurang Bhargava

A chromate-free, self-healing conversion coating solution for magnesium alloy substrates, composed of 10-20 wt. % Mg(NO)HO, 1-5 wt. % Al(NO)HO, and less than 1 wt. % of [VO]or VOdissolved in water. The corrosion resistance offered by the resulting coating is in several hundreds of hours in salt-spray testing. This prolonged corrosion protection is attributed to the creation of a unique structure and morphology of the conversion coating that serves as a barrier coating with self-healing properties. Hydroxoaluminates form the backbone of the barrier protection offered while the magnesium hydroxide domains facilitate the 'slow release' of vanadium compounds as self-healing moieties to defect sites, thus providing active corrosion protection.

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Stewartsville, NJ, United States of America

Peter Hornish