Document Type

Article

Publication Date

9-1998

Journal or Book Title

Gold Bulletin

Volume

31

Issue

3

First Page

88

Last Page

92

DOI

10.1007/BF03214768

Abstract

Metal-metal composites were first produced in a copper matrix in the 1970’s, and they have since been produced in several other binary metal systems. This strengthening technique reinforces a ductile metal matrix with a ductile metal second phase. In some binary systems, this technique confers extraordinarily high strength and hardness while still maintaining low electrical resistivity. This article reports on the first gold matrix metal-metal composite, which was produced by deformation processing a 90%Au-10%Ag powder compact. The Au-Ag specimen studied had an ultimate tensile strength of 550 MPa and an electrical resistivity only 8% higher than that of pure Au at a deformation processing true strain of 5.6. The 590 nm average Ag filament thickness in this composite was relatively coarse compared to other deformation processed composites, which suggests that substantially higher strengths would be possible in a gold matrix metal-metal composite using deformation processing to higher true strains to reduce the filament thickness.

Comments

This article is from Gold Bulletin 31 (1998): 88–92, doi:10.1007/BF03214768.

Copyright Owner

The authors

Language

en

File Format

application/pdf

Included in

Metallurgy Commons

Share

COinS