Decorative article

Details Decorative article Decorative article

1992-12-14

1997-07-01

Turner, Archene

Stock material or miscellaneous articles

Composite

Of metal

428216, 428336, 428469, 428697, 428699, 428701, 428702, C22C 900

Patent

active

056436793

ABSTRACT:
A decorative article comprises as essential components 5 to 95% by weight of Cu 5 to 95% by weight of a copper based component in which at least one kind of metal selected from a group consisting of Au, Pb, Zn, Sn, Ni and Al is solid-dissolved in Cu, and a balance of Fe and unavoidable impurities. The decorative article exhibits a color tone satisfying a formula x.gtoreq.0.3 and/or y.gtoreq.0.3 for which chromaticity coordinates x and y in a X-Y-Z colorimetric system are used. Usually, the decorative article iron alloy is practically used in the form of a plate and contains a cast structure in a part of its matrix while exhibiting a dislocation density of 10.sup.2 dl/cm.sup.2 or more. The cast structure is a dendritic structure which extends from the surface of the plate in the direction of a thickness of the latter. A thickness of the dendritic structure is determined to be 1/10 or more of the thickness of the plate.

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