Recent developments in magnesium alloys, processing techniques, and corrosion protection schemes are reviewed. The casting alloy WE43 is detailed, data being presented showing that it compares favorably with aluminum-based casting alloys on a strength-to-weight basis. In addition its intrinsic corrosion characteristics are shown to be similar to those of aluminum-base alloys. A countergravity casting process, specifically designed to make higher quality, thin-walled magnesium alloy components, is described, together with property data indicating the improvements obtained. Also discussed are the ongoing developments in metal matrix composites and rapid solidification technologies, showing the benefits offered by these processing routes. Finally current corrosion protection schemes are reviewed and their overall cost effectiveness discussed.

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