Corrosion inhibiting additive
AssigneeRaytheon Technologies Corporation
InventorsZhongfen (Vivian) Ding, Georgios S. Zafiris, Weilong Zhang, Michael A. Kryzman, Catalin G. Fotache, Mark R. Jaworowski
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Abstract
A corrosion resistant article including an aluminum substrate and a corrosion-inhibiting cerium based corrosion inhibitor corrosion inhibiting additive on the aluminum substrate, the corrosion inhibiting additive comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor, the anodic corrosion inhibitor greater than 25 wt % of the total inhibitor.
Claims13
An article comprising:
- a metal substrate;
- and
- a cerium based corrosion inhibiting additive on the metal substrate, the corrosion inhibiting additive comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor, the anodic corrosion inhibitor greater than about 25 wt % of the total inhibitor, wherein the anodic corrosion inhibitor is at least 25 wt % ZnMoO4.
A method of selecting a corrosion-inhibiting substance, comprising:
- selecting a cerium-based corrosion-inhibiting composition based upon a solubility range, the corrosion inhibiting additive comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor, the anodic corrosion inhibitor greater than about 25 wt % of the total inhibitor, wherein the corrosion-inhibiting cerium based corrosion inhibitor substance includes an anodic corrosion inhibitor containing at least 25 wt % ZnMoO4.
A method of selecting a corrosion-inhibiting substance, comprising:
- selecting a cerium-based corrosion-inhibiting composition based upon a solubility range, the corrosion inhibiting additive comprising an anodic corrosion inhibitor and a cathodic corrosion inhibitor, the anodic corrosion inhibitor greater than about 25 wt % of the total inhibitor, wherein the corrosion-inhibiting cerium based corrosion inhibitor substance includes a cathodic corrosion inhibitor with a Ce-Tartrate, or a Ce-Acetate.
A corrosion-inhibiting composition comprising:
- a carrier fluid;
- a cathodic corrosion inhibitor in the carrier fluid;
- and
- an anodic corrosion inhibitor in the carrier fluid, the anodic corrosion inhibitor greater than about 25 wt % of the total inhibitor.
Dependencies are inferred from the claim text.