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US 5,209,787 AGranted
Surface modification of copper alloys
AssigneeOlin Corporation
InventorsJohn F. Breedis, George J. Muench
Life of this patent
Estimating the term…
Abstract
A composite copper alloy having a modified surface is provided. An element or combination of elements both soluble in copper and reactive with nitrogen are cast with copper or a copper alloy forming a solid state solution. The alloy is reacted with a nitride former to modify the surface. A continuous surface film is formed by heating in a nitrogen containing gas. A dispersion of nitride precipitate in a copper matrix is formed by implanting nitrogen ions.
Claims8
A multi-phase copper alloy comprising;
- a copper alloy matrix CuQ where Q is an element or combination of elements both soluble in copper and reactive with nitrogen;
- and a second phase precipitate QN intragranularly dispersed within said copper alloy matrix.
Dependencies are inferred from the claim text.