MULTILAYERED COMPOSITES BASED ON ULTRAHIGH CARBON STEEL AND BRASS

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Abstract
Thermal and mechanical processing procedures were developed to prepare unique metal matrix laminated composites (MMLC) based on a combination of ultra high carbon steel (UHCS) and brass. The MMLC material, of 50 volume percent of each component, was processed at about 700°C to large strains by a combination of rolling and press-bonding. Discrete interlayer boundaries were retained until layer thicknesses of less than 10 μm were reached. At this stage brass penetrated the UHCS material and became the continuous component, The UHCS/brass laminated composites can be selectively heat-treated with no interdiffusion between the layers. Exceptional ductility was obtained in the laminated composite in bend and tensile tests at room temperature.