Elevated temperature behavior of a magnesium based bulk metallic glass

Bulk metallic glasses are a new material set that possess interesting and exceptional engineering properties. Their study has been a major focus of research in metallurgy since the early 1990s, and recently their properties have led to application in specialized applications. Limitations including material cost, maximum attainable cast diameters, and high density have prevented the widespread use of these materials. In particular, the high density of most bulk metallic glasses has significantly reduced their appeal to the aerospace community. In an effort to overcome this, research is being performed on producing lower density glass forming systems based on magnesium and calcium. The aim of this study is to determine the material flow behavior of Mg₅₄Y₁₁Ag₇Cu₂₈ at elevated temperatures and to determine the optimum processing parameters for forming amorphous parts --Abstract, page iv