Patent ID: 11932925
Assignee: NOVELIS INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 10:
11. A coated aluminum alloy product, comprising:
an aluminum alloy substrate, a coating on a surface of the aluminum alloy substrate, the coating comprising:
from 0.3 at. % to 8.0 at. % Mg, Ca, Zn, Ni, or combinations thereof in an amount sufficient to prevent corrosion in the aluminum alloy substrate; wherein the coated aluminum alloy product has a coverage percent of 18% or less during filiform corrosion testing according to ISO 4623-2(2016); and wherein the coating on the surface of the aluminum alloy substrate is applied using a chemical wash, physical vapor deposition (“PVD”), or chemical vapor deposition (“CVD”).