Surface modified copper alloys

Details Surface modified copper alloys Surface modified copper alloys

1993-03-01

1994-06-14

Roy, Upendra

Metal treatment

Stock

Copper base

148206, 148238, 148240, 428615, 428627, 428674, C22C 900

Patent

active

053206894

ABSTRACT:
There is provided a composite copper alloy having a copper alloy core and a modified surface layer containing a nitride or carbide film. Alternatively, the modified surface layer may contain a carbo-nitride film. The alloy is formed by reacting a copper alloy with nitrogen, carbon or a nitrogen/carbon mixture at elevated temperatures. The resultant surface layer improves the tribological and mechanical properties of the alloy while maintaining useful electrical conductivity.

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