SEMISOLID PROCESSING AND ITS APPLICATION TO MAGNESIUM ALLOYS

摘要

Since its discovery over thirty years ago, semisolid processing is mainly applied to alloys with relatively low melting temperatures, particularly aluminum. Although historically an interest in magnesium reaches back to the early 1970's, compared with aluminum, investigations of semisolid magnesium alloys are still scarce. This report presents the origin of semisolid processing, rheological behaviour of semisolid slurries and the key technologies, available in today's industry, based on thixo- and rheo-routes. Particular attention is being paid to emerging techniques of injection molding. The major requirements imposed on potential alloys and typical components, manufactured commercially, are characterized.