This paper describes a new ceramic particle-reinforced aluminum composite that can be cast, extruded, and forged much like unreinforced aluminum, using conventional aluminum fabrication equipment. Unlike other metal matrix composites, this material is produced economically by a simple ingot-metallurgical process. An overview of the production process is given, and of the techniques used for fabricating the material to intermediate and final product forms. The material's mechanical properties--particularly its improved stiffness, strength, wear resistance, and lower coefficient of thermal expansion--are discussed in some detail. These properties offer attractive design opportunities for a variety of automotive casting and forging applications, such as pistons, connecting rods, valves, cylinder liners, and suspension members. A survey of current progress in the development and testing of such components is given.
Production, Mechanical Properties, and Automotive Applications of a Castable Composite Material
Sae Technical Papers
International Congress & Exposition ; 1990
1990-02-01
Conference paper
English
Connecting rods , Metals , Ceramics , Pistons , Aluminum , Engine cylinders , Production , Casting , Composite materials , Fabrication
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