Surface modification of copper alloys

Details Surface modification of copper alloys Surface modification of copper alloys

1991-12-23

1993-05-11

Roy, Upendra

Metal treatment

Process of modifying or maintaining internal physical...

Carburizing or nitriding using externally supplied carbon or...

148240, 148436, C22C 900, B22D 2300

Patent

active

052097870

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.

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