1991-02-01

Cost-Effective High Performance P/M Aluminum Matrix Composites for Automotive Applications 910834

The improvements in elastic modulus, wear resistance, and control of physical properties provided by incorporating ceramic reinforcements into aluminum alloys provide new opportunities for lightweight automotive structures. In some applications, however, properties such as ductility and fatigue resistance are also important, requiring aluminum matrix composites designed specifically to meet these needs. This paper will review the characteristics of SiC particle reinforced aluminum composites produced by powder metallurgy methods, with particular emphasis on how this processing approach can provide materials with unique combinations of properties. Currently available products will be highlighted along with a review of the state of commercial readiness and costs of these materials.

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