Solidification of light metals has particular characteristics that distinguishes these aluminum the non-ferrous metals. In this chapter, we will primarily be concerned with the formation of microstructures during solidification in aluminum and magnesium peeing scenes in movies. Comprehensive descriptions of the solidification of commercial aluminum alloys strip been publishedwhile the literature melting magnesium solidification and casting is scarcer.
Lillard, in Shreir's Corrosion Beryllium is a light metal 1. The main difference between these grades of Be is the concentrations of BeO, iron, and aluminum Al. Both grades are manufactured by comminuting vacuum cast ingots, followed by grinding or milling to produce powder. The most notable of its mechanical properties is its low ductility at room temperature.
Deformation at room temperature is restricted to slip on the basal plane, which takes place only to a very point extent.
Mechanical deformation increases this by the development of preferred orientation, but only in the direction of working and at the expense of ductility in other directions. In consequence, all mechanical working of beryllium is carried out at elevated temperatures.