Accession Number : AD0699349

Title :   DEFORMATION BEHAVIOR IN METAL FIBER-METAL MATRIX COMPOSITES.

Descriptive Note : Technical rept.,

Corporate Author : ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MASS

Personal Author(s) : Vennett,Richard M. ; Wolf,Stanley M. ; Levitt,Albert P.

Report Date : DEC 1969

Pagination or Media Count : 21

Abstract : A model system, brass-tungsten, was used to study the effect of multiple fiber necking, strain rate, and fiber surface condition on the ductility and deformation behavior of uniaxial metal matrix composites. Low volume percent (<20 v/o) composites were made using brass (90Cu-10Zn) powders and tungsten wires. Multiple necking of tungsten wires in a brass matrix was found to be a result of a load transfer from the wire to the surrounding matrix. Composite ductility was shown to increase with decreasing multiple neck spacing and increasing reduction of area at the neck and was generally independent of strain rate. The ability of metal matrix composites to undergo simple forming operations such as cold rolling and closed-die forging was also shown. (Author)

Descriptors :   (*COMPOSITE MATERIALS, *FIBER METALLURGY), REINFORCING MATERIALS, FIBERS, BRASS, TUNGSTEN, DEFORMATION, DUCTILITY, INTERFACES, BONDING

Subject Categories : Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE