Metal matrix composites for aeroengines

Metal matrix composites (MMCs) mill play a significant role in the future o f gas turbine aeroengine development. This paper outlines the benefits and some of the potential applications for Al and Ti MMCs and discusses issues involved in the introduction of this relatively nea class of composite mate rials into engine components. The potential for cost savings and performanc e improvements which may be achieved by the introduction of silicon carbide particulate reinforced Al alloys (Al-SiCp MMC) are discussed, where the pr operties of the composite can be tailored to meet the requirements of a spe cific application. Some of the processing implications for Ti matrix compos ites (Ti MMCs) are explained for a range of component applications. Illustr ations are given of how the manufacturing process can be controlled for a c omplex component. Finally, the influence of raw material, manufacturing, an d component costs on the successful introduction of MMCs into aeroengines i s discussed. MST/4567.